an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221
Edition: Model Aviation - 1982/08
Page Numbers: 16, 17, 18, 20, 118, 119, 122, 123
an c/it ALTHOUGH never fulfilled flying airplanes did design confess affairs heart virtuoso creations others Carl Goldbergs immortal Zipper Jim Walkers fantastic Fireball Howard Bonners Smog Hog example among clever sport jobs some us can never forget author can never forget Veco Dakota bumblebee model aviation Designed Joe Wagner 2-ft all-balsa biplane area ofI6l sq Powerwas then-new engine opened new worlds small models Actually could fly K&B Infant 02 Cox 010 came along later has perhaps double Infants power 09 opened box back Forties thought Joe Gil Henry ran Veco doping unventilated closet Absurd thing deep cabin fuselage provided gap between wings equal chord sheet wings stab glued rigidly place no way adjust anything except small rudder tab Twas blessing disguise because pre vented lousing things up wings over singlesurfaced huge leading edge/spar shaped notcheda cave mans Jedelsky stuck few ribs notches glued sheet tremendous left thrust decreed firewall could stick way wanted Dakota weighed ton expected basket splinters first flight unbustable Considering power Infant would surprise us hear power loading measured light years Since Free Flighters lived fear torque tremendous left thrust little biplane seemed reason able perpetual motion Dakota flew first attempt same way Power turns tight left kind squishy nose up Infant im probable Dakota maintained altitude 10 15 feet climbed imperceptibly carried fixed right rudder tab power died flight pattern swung over steep right glide No model good glide small fields Joe first small-field Free Flight airplane nearest thing ever automatic flight guy 35 miles south us Danbury CT gilded lily sheeting wings bottom still heavier painting crate heavier still adding pen cells lights night flyingall puny Infant flew raised kids Dakotas Showed start engine told get lost Dakotas buzzed around pasture day long Years later early RC sessions always someone FF Dakota laughs thing would come down line just grazing car tops circling car wed roll ground raucous hilarity guy 065 Dakota climbed steeply straight ahead like lively Buzzard Bombshell later kids demanded go us weekend radio flying speedily got bored wanted eat or wed hand beat-up Dakota put together easy would fly buddies sunrise sundown Once kids busted last prop OK 049 took broken-bladed 9-6 sawed off both blades leaving fat hub just enough finger purchase flip next thing knew dumb crate circling tightly sky ward hooked thermal time ever saw brick lift came down half-mile away Now things sanded nor clear-doped either oil-soaked Developing bulkhead sections difficuitchore forguys know drafting Bill Noonan establishesformershapes making Styrofoam halfmodel cuts formerstationsand traces cardboardin turn traced balsa makeformers shows usthe firstand last stages lovely Curtiss 1 8-Ttriplane float plane Don Srull has neattrickforassembling such fuselage lays down thetopand bottom longerons plan spot-glues vertical jig pieces across both longeronsextending distance beyond bottom longeron extensions jig pieces glued board andthe board held vise Its cinch afterthatto glue alltheformersand stringers placeand avoldthetedious mating halfshells guys have bags-full tricks making difficult seem simple 16 Model Aviation lflC late great I-red MIlItky ot Uermany left Cumulus 2800 Sailplane first fly Electric-powered Free Flightduring early 1950s rare plc taken about 1963 inGermany FredandDonSrullright flying Sailplanes day wood daubed sloppy coat color usually red digress Guillow Trixter Profile Train er designed Lou Andrews nearest thing Dakota CL gave kits de manding kids told ask us come down park could fly took about three weeks Such battered gluedtogether all-balsa profiles never did see writing Scrap Box Model ir plane News wed mention Dakotas Gil Henry would groan because go back production time inquiries South America alone required special run crate could die Clarence Haught did enlarged version Model via tion built-up wings too like others fond memories same true Ernie Wrisleys Dakota Grande monster RC What true story behind Dakota What ever happened Joe Wagner Ive both amused amazed Dakota variations have appeared Model Aviation has turned out very adaptable design say least Heres little background Dakota Sioux came 1947 getting tired competitionstyle Free Flight models Joe warms up didnt satisfy desire realism flight no real airplane climbed like rocket 20second engine run spent rest its flight gliding wanted fly gas models like real airplanesengine runs minutes instead seconds did some experimenting Class B models always problem getting airplanes back again glided too well after engine stopped Oddly enough never lost made longest in-sight flight ever witnessed about 8 am until well after 5 pm almost totally windless cloudless day Ill never forget flight Anyway nes arrived overjoyed allowed design models small enough 1 inefficient gliders 2 tight circlers 3 very easy build moved California 1949 prototype Dakota pretty well worked out Its original name Rigid Midget obvious reasons Veco kitted several changes made Gil Henry Indian name fixation Chief Papoose Squaw etc Another reason change limitation die-cutting widest piece die-cut wood could produce 2A third reason overabundance parts inventory Papoose probably worst-selling kit modeling history modified Rigid Midget Dakota Joe goes also redesigned somewhat larger monoplane Sioux companion Dakota make Vecos initial Free Flight offerings full trio also designed low-wing t model called Navajo because looked like Navion Only Dakota Sioux placed market reason simple enough both Dakota Sioux stable adaptable enough fly successfully nes market Torp Junior 035 OK Cub 099.. amuses see enlarged versions Dakota designed take greater power modern nes have Dakota right now hot Black Widow flies about same Cub 074 used As Sioux columnist built Sioux bed ward off ravages flu although design versatile Dakota never popular sales ratio about 10-6 favor biplane think much due August1982 17 airplane kites Jim DeLaurier Top L Phugoid-3 has 3-ft span built 1972 Top C Yellow Bird very small 18-in span also 1972 Top R Phugoid-5 built 1973 modified 19804-ft span Above 1 Wind Cruiser 1979 4-ft span Bill McKinney pic Above R Jim DeLaurier Wind Cruiser photo Hank Szerlagl Like love hate dividing line between kites planes fine its invisible Aerodynamics apply both since biggest problems involved towed tetheredsome kites would stable free flightone supposes powered kites would feasible Direct comparisons exist between Gliders being towed after release kites Jims impressive designs remind us truths Wrights Curtiss Bleriot etc live forever Super Great Lakes Bob Benlamin based Winner Models design Nick Ziroli Its finished /4-Oz fiberglass Sig resin Silray covering butyrate clear auto primer Super poxy Has home-brew muffler/scale exhaust mild baffled Supertigre 60 power DAKOTA SPAN 24 DESIGNED BYJOE WAGNER MFG BY HENRY ENGINEERING & DUMAS PRODUCTS too-heavy wing Sioux reduced its ability switch left power circle right gliding circle Its wing designed use up much surplus Papoose wood inventory possible Thus Sioux ended up what must have strongest wings ever put FF model Once late Hi Johnson out sport flying Joe recalls Sioux landed tree climbed tree tossed Sioux down Hi tried catch missed wing caught him directly across forehead knocked him cold out maybe 10 minutes spite efforts revive him next week sported bruise across brow looked hit baseball bat Now thats strong wing model undamaged Sioux built own fun flying used type wing construction later put Taylor Cub Comanche PAA-Load models also used lighter-weight landing gear instead ex-Papoose Sioux kit stuffnot duplicates Veco kits own original designs better fliers kits have flying examples ships around parts New Wilmington PA six yearswith wide variety engines Cox Pee Wees ancient Cub 049s newest Black Widows Babe Bee tanks however have given serious thought making limited production run original designs Dakota Sioux Joe isnt much politicking doesnt like rigidity rules took up long-distance bicycling regional rep League American Wheelman Americas oldest bicycling organization 102 years Hes put some 30000 miles last five years faithful old Rudge Royale 10-speed got inter ested road-running last three years hes done fair amount racing mostly 62mile events has won few medals trophies plus-SO age group Joe has given up forms AMA FAI competition now leader Bald Eagle Squadron active Flying Aces Club am flying models old-fashioned Continued page 20 18 Model Aviation - I I -L sequentially number offspring Bill Winter would like meet No 5 son Mike above tech rep possibly worlds prolific builder has given guys kinds nifty RC sport lobs cant possibly fly Bill Evans Simitar Mike holding arrived pops place huge baxnow what Bill foreground Gold berg Eaglet Midwest Champ trike Top pic Learning fly Mike sneak sessions mob Alexandria LA around Steve Emerson Believe beauti ful Eaglet being held Steve first RC Installation radio gear middle pic text book style though antenna evidently plopped place pic Joseph Bushey pics MORE POWER TO Y0U SPRING ACTION KWIK KLIPS Spring action locks ______________ Kwik-Klip onto glo continuous -positive contact wont ever slip vibrate off No 150 battery wires 85c No 151 battery wires $1 40 QUICK ASSEMBLYPATENTED 1/2A KWIKILIPS o 14875C iwithOiit battery wires No 149 $125 battery wires KWIK GLO GLO PLUG CONNECTOR FOE ENGINES 10 AND UP PERFECT FORNo 147 HARD TO GET AT PLUGS225 piece brass barrel snaps 11W plug positive starting 24-112__I long attached battery -/ lugs DU-BRO KWIK-LINK &AJ* tried true spring steel Kwik- Link Ideal control linkage 2 No75c FILL FUEL PUMP ONLY DU-BRO FUEL UMPS- SONICALLY EALED TO PREVENT CAT NO 191FOR GLO FUELS _________________________ FUELING SYSTEM FILLINCLUDES CAP FITTINGS FUEL GA IESEL ONLY FUEL PUMP11 CAT NO250 DU-BRO PRODUCTS"" INCORPORATED 480 Banner Road Wauconda Illinois 60084 U S PUMPS IN AND OUT HAND OPERA TED way schoolyards farmers fields ath letic fields couple other old-timers have joined sort activity little old-fashioned airplanes flitting around local skies have drawn goodly amount local interest Before days mammoth metal airplanes old aviators referred fragile machines kites still sometimes use word describe slower lightly loaded models Kites airplanes kissing cousins amazing amount kite technology applies closely towing Gliders Soaring Free Flight Kites springtime novelties amuse kids Experts deeper designeven using computers virtually crack Wakefield Nordic Power people Much impressive workwe thinking air plane-type kitesappears Kite Lines succes sor Kite Tales Subscription Kite Lines quarterly international journal kiting $900 Address 7106-A Campfield Rd Balti MD 21207 As country boy before TV house hold radio summer-boarder kids play discovered kites extent expertise longer tail stable things became Sometimes flight lasted day Tie line stake go home lunch Fly spool thread two spools kite becoming speck high far could press luck wind came up deep trouble thread got Rubber-Powered models doubled tripled size fuselage commerNal design came along built feather-light thought good some thermal held up five minutes sowe didnt know about thermals birds always knew such model lift didnt Theyd chatter flit about Have noted Old-Timers story begins letter Jim DeLaurier associate professor Uni versity Toronto Institute Aerospace Studies Downsview Ont Canada seems Jim lad 1956 inquired us Model Airplane News about modeling Chicago region led becoming member celebrated Chicago Aeronuts enjoying several years Free Flight what asking 1981 what ever happened tandem-winged Rubber job based Langiey Aerodrome landing gear added submitted MAN 1957 blamed Uncle Sams PO also said like Charlie Sotich Bill Bigge sublimated activities toward kites enclosed copy article hed published few years ago Kite Tales What makes Jim interest us lifetime interest airplane kites Because mixed aero modeling observations scientific develop ment kites few pleased show remarkable photosa sport modeler may wonder ifa plane really kite ifakite indeed plane high school days Jim used typical modelers cut-and-try approach achieve stable high lift/drag ratio kites would fly almost overhead What puzzled him towed tethered Glider usually unstable though machine stable free flight Towing tethering gave com plicated dynamic system free-flying vehicle alone also true some kites steer Glider launch know what talking about Finding much interest exists cable-flight vehicle systems such towed re-entry deceler Con tinued page 118 20 Model Aviation WE WONT LET YOU DOWN Cox Customer Service prompily handles parts service requests Cox Cox / Sanwa products CHECK IT OUT Cox division Leisure OJnamics Inc Hobbies II0O W 781tSL Minneapolis MN 55135 45-60 Powered Sport Competition Flying Complete Parts Support HIROBO SCALE HELICOPTERS 50-60 Powered Tow Cobra Ranger Lama uois ultimate scale helicopters PLAZA HOBBYCRAFT 473 E State Street Sharon PA 16146 OPTER & PARTS CRICKET KIT$19995 w/lrwine Eng*27995 wIK & B 35 Eng*29995 *lncludes heat sInk & muffler built-up radios RTF available prices ll 412-342-5749 Fun/Winter Continued page 20 ators towed sailplanes towed under-water de vicesupside down kites aerodynamicallyshaped tethered balloons did PhD re search developing computational method predicting stability such systems using tethered kite Stanford open-throat wind tunnel research documented NASA contractor report CR202 1 warns kite purposely unstable various combina tions wind speed cable length Jim hired develop aerodynamic shape 200000 cu ft balloon would stable previous balloons tethered side-to-side hunting traits Among other things narrow range fin size location yielded dynamic stability Afterwards Jim applied new knowledge further development airplane kites As towing model Gliders moving line attachment point forward improved tow stability addition underslung fin enhanced stability did Sal Taibis FF Spacer power regime Jim added large forward fin kite flew nearly overhead quickly recovered atmospheric disturb ance Charlie Grant did early-day Rubber-Powered pushers got fly straight-line up 2000 feet morethat before 1920 Because Jims kite good aerodynamicallyshaped wing operated efficient angle air flow developed lift two pounds Decreasing tail area adding tail weight produced instability also gospel air craft man-carrying modeL Also lower wing loading kite smaller fin areas required stability suggests could improve RC models bigger fins snap inadequately handled note kite designer draws unique stability plotting chart Visualize upside down T upright graduated cycles/seconds frequency oscillation base left dampish factors stabilizing wed guess right amplification factors presum ably destabilizing seems uncannily like way wed graph pitching moment curve aircraft may know what use cope fore aft stability techniques model kite design falls left upright inverted T stable region vice versa find far easier interpret familiar airplane type stability charts Just consider early Wright gliders flown tethered like kites 1903 man-carrying machine electrified mankind merely kite engine pilot control Perhaps could have flown like kite 60-mile wind stout rope Have fun kite weekend people write chat about things random Robert Benjamin artist cant see letterhead displays tiny profile Cessna 120and weve lost five minutes modelers always fascinated profiles especially happened have flown real ship proportions perfect Rubber RC Scale long nose gear well back took off 120 did let tail come well up allowed ship fly oil tail perhaps two-thirds way up normal 120 has great airfoil RC Scale Rubber guy probably would substitute flatbottom 120 has flaps about 118 Model Aviation K 7 NW ~MP COMPETiTOR way can see difference aim very steep approach high up dive really watch spot put flaps down up Youll see spot shift slightly line plane Benjamin looking reference material Aeronca K Quarter Scale Said already through Wylam Westburg Cleveland Repla-Tech phoned Comet Rubber kit nothing left kit plans Paul Matt published K drawings wonderful Historical Aviation Album series books PO Box 33 Temple City CA 91780 project mind Bob tells us involves Quarter Scale lovely detailed enough com pete powered beautiful OS Gemini recently weakened bought would criminal cowl over cylinder heads everyone brother builds C-3 hence K photos 53-in Sport Scale Super Great Lakes based Winner Models Nick Ziroli kit no longer available Finish -oz glass Sig resin Silray butyrate clear auto primer Superpoxy Power tame baffled Supertigre 60 home-brew muffler/scale exhaust World Engines Expert 5 helps steer made no attempt reproduce specific color scheme Bob goes help get over Scale nerves build some thing accurate project about hit bench Sig J-3 prior release Sigs Quarter Scale J-3 modified scale accuracy matched local restored Cub have logged time Power will Mark twin 30 As may have guessed Great Lakes am diehard silk dope builder Although have used foam MonoKote honestly feel though such materials have certain specialized uses gen eral departure traditional methods has done hobby some harm Author oldtimers feel way well out numbered anyway well let Bob tell like him Quick easy methods tend feel encourage new modelers especially RC lot exposure sort thing plateau being able iron plastic deprived need develop skills used prerequisite showing up field smooth shiny airplane realize bit oversimplification know what am talking about 1 take lot kidding local club Bob admits about hiding seams plastic cover ing etc. think have made point have gotten couple guys try something might otherwise have done Working through Civil Air Patrol squadron found four five boys beginning build Control Line simple Free Flight models Since build everything Rubber Scale through CL RC can find time good variety models shop demonstrate good helping patience little help Lord may actually able get few real modelers started 1 have few projects cooking restored CL Veco Brave Forster 29 ready test Comet 54-in Taylorcraft modified struc ture 09 engine 3-channel RC flying covered red silk clear dope Modeling like light viewed through prism breaks down colors rainbow recall own resistance new things fiberglass foam iron-ons too would die silk dopeor maybe nylon Continued page 122 JET HAWK F-4 PHANTOM F-I LA L HUNOERWRD REVENGERGEP TA L ff TLAS BOOTLEGS R COMP SAZLI -50L AS 2 K1N 11 OAM - 4s- Local Dealer Send $100 Catalog August1982 119 Earl Stahls beautiful REAR WIN SPEEDSTER appeared n Jan 1940 Model S[V[RSIV tougher Silron Wed die before wed fly single-channel pulse- rudder jobbie just because rudder wiggled same Galloping Ghost way go because both flippers rudder banged away like blazes ground crate acted like wounded duck since reborning some six years ago weve latched onto everything use Mono Kote trying new Coverite materials everything Quarter Scale jobs Sig Coverall other polyester cloths after resorting Doc Mathews neat trick coating frame white glue sticking cloth iron end annoying business making seams stick down decided use silk Quarter Scale Vagabond flippers What ajoy forgotten fast neat easy silk use cant anything easier wet-covering silk course once iron-on applied job overand thats just 50% time needed dope silk joined International Miniature Aircraft Association biggies received fine monthly mag High Flight edited old friend Les Hard seems glory folk like EAA tribesurely mere modeling Pictures fly-ins over land look like gatherings home-built clans Mobile homes trailers over place photo shows guys prime mover trailer So what Well tow vehicle reyhound bus trailer big carried five Quarter Scale models assembled plus chaps sports car running town thing about IMAA different Youll see Weve got two sons fly RC Long Island Rob has long time can thread needle Pattern job other Mike tech rep newly stationed Louisiana Hes just managed takeoffs landings builds like mad Things cant use gives away have friends has handed Cavaliers Falcons Champions Gentle Ladies etc Anyway Alexandria LA seemed outback first Mike encountered club Mid-States RC Club guys sound like bunch madmen can mobilize half hundred crates Sunday fly screaming scaled-down Phoenixes called Smokers such stuff Piece Cakewithout gear shoot scraping touch-and-goes big abandoned military field countryside haystacks no people around get phone calls feel like shooting myself active AFB Mikes got group guys own base supplied space build So sent him extra Eaglet Gentle Lady kit Five building Gentle Ladies Eaglets coming out woodwork Mike built Kadet Top Flite big 13which gave older brother Rob 1-3 has customized Aldrich ST 46 great mans name embossed lug other beautiful flier am conniv ing steal Mike also love the15 Air Scout having tested first can see Hes built Evans Simitar shipped big crate will seek good pilotmy reactions now slow molasses Via pic indulgence Id like introduce Mike also Steve Emerson beginner buddy base Believe Eaglet Steves first crashed buddy-box cable shorted out So whipped together second two guys sneaked out 122 Model Aviation Designed during 1930s P35 ancestar famous P47 Thunderbolt kit may constructed either P35 military pursuit Bendix racer KIT FEATURES TWO TYPES OF WHEELS hard flexible tires ILED INTERIOR V TWO TYPES OF DECALS TYPES OF CANOPIES Send $1 far complete illustrated catalogDEPT MA 181 PAWNEE ST SAN MARCOS CALIFORNIA 92069 have ING Tests shown GloBee Glow Plugs habit forming Write Twinn-K Inc Dept GB3 Indianapolis Indiana 46231 LEFT BANK R/ C DISTRIBUTORS P 0 Box 128 Beacon N Y 12508 Hours Mon Sal 914 83t121410 am -9 pm H B ENONESGOLDBERGTOP-FLIT 12R/C w/muffler2995GentleLady1695Opaque Monokota650 15H/C w/muffler3195Eaglet502395Transparents650 20R/C w/muffler3695Falcon56 Mk II3695Metallic Monokote750 21PDP w/muffler4895 CRAPTAIRTrim Seal Tool1095 25H/C w/muffler4195DrifterII1695Sealing Iron1495 40H/C w/muffler569bPiece-O-Caka1695Heat Gun2195 40POP w/mutfler6795Butterfly II3495 ELD EOUIPMENT 50H/C w/muffler6195 OI STARTERS 61H/C w/muffler7995GLA Trainer3495Sullivan Hi-Tork2795 61POP w/muffler8995Trainer 404295Hi-Tork Deluxe2995 Trainer 605195Hi-Tork 24 Volt3295 FUTABA RADIOS TOP-FLITE OWEH PANELS FP4FN W/26a16495Contender 403795DAE #30 MK II1695 FP6FN W/26518995Contender 604395DAE 7605 MK IV2695 FP-7FGK w/26a24995 USE OF BALSA FUEL PUMPS 8-20 Servo31952 DEH1695Ou-Bro KWIK-Fill795 S-21 Servo3495P-SI 40 Wood3995Dave Brown Six-Shooter795 S-26 Servo2595Sonic-Tronic 1250 12v1295 Shipping & Handling $300 Please add $200 COD Service Sorry no Foreign Orders Personal checks will held Clearance N Y State Residents must add local sales tax Price subject change notice Send long SASE complete listing C ILAIN Losing control can night-modeling radio repair So avoid mare wrong response toinflated repair costs undue given command can take itsservice time-call Radio South toll modelfor fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience __ ______ --TRAFTjJ nice JR PROPO radio Authorized sales .equipment imported y 925 E CreightonCircus Hobbies Road Pensacola FL 32504 904/478-6745 calm week day ball success ful flyingthe Air Scout Gentle Lady Eaglet Meanwhile back ranch weve some adventures own outta runway Bill Winter 4426 Altura Ct. Faifox VA 22030 AuroroalSaponara Continued page 26 landing gear Radio Installation Mount servos ywood rails epoxied place servos mounted next other touching Cut pushrod exit holes fuselage elevator rudder Two holes opposite other required elevator pushrod holes actually -in slits 1 long Mount control horns rudder elevator shown plans Two pushrods requiredone forthe rudder elevator elevator has two rods connected together pushrod wire link attached re balsa pushrod making egree bend wire inserting hole drilled re wires firmly attached balsa pushrod wrapping string around wire balsa epoxying wrap other end balsa pushrod has 1/16 wire attached same manner Make 90-degree bend end 1/16 wire can inserted servo wheel Mount servos fuselage Connect pushrods other end rods elevator rudder control horns Make sure pushrods dont bind servos always will return same neutral position run back forth Wrap battery receiver foam install shown plans battery should wrapped plastic bag prevent fuel getting Flying model required 3/32 up trim Although can ROG. prefer hand launch Once model air rapidly gains altitude can trim straight level flight beginner will appreciate fact model easy fly forgiving model flies moderately fast 6 x 3 prop 5 x 3 prop Auroroa will really move choose fly ailerons lots stunts possible depending flying skills would recommend first flights calm day As gain exper ience can fly less favorable days would recommend fly days 12 mph winds Remember small plane can easily fly away fly poor weather hope enjoy Auroroa Radio Technique/Myers Continued page 29 forms group one-on-one competition other hand rm told OEM Original Equipment Manufacturer price synthesizer chip about $5 synthesizer need reference crystal can soldered synthesizer really solves problems because device decides frequencies will synthesized can EPROM erasable programmable read-only memory also cheap EPROM can programmed match AMA Phase-In Plan changes will needed flash intense UVultra-violet light source erase memory can put new program additional frequencies whenever want Dick Jannson Frequency Committee showed $250 digital 2-meter transceiver operatesonS KHzspacingat 144 MHz Allthat little box needed 5044 chip control stick youd have dandy RC transmitter synthesized digital built-in monitor frequency can bet manufacturers representatives gave little toy eye showed what can done right writing advertisers mention read about Model Aviation August1982 123 K & H GLASS Prod 16 OUINCY TERRACE -CITY IOWA 50401 ij2co cA zAic co INC 883 Lexington Ave Brooklyn NY 11221