IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn
Edition: Model Aviation - 1981/03
Page Numbers: 10, 11, 12, 123, 124, 126
IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn
Edition: Model Aviation - 1981/03
Page Numbers: 10, 11, 12, 123, 124, 126
IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn
Edition: Model Aviation - 1981/03
Page Numbers: 10, 11, 12, 123, 124, 126
IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn
Edition: Model Aviation - 1981/03
Page Numbers: 10, 11, 12, 123, 124, 126
IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn
Edition: Model Aviation - 1981/03
Page Numbers: 10, 11, 12, 123, 124, 126
IVE MADE another epic decision Having sworn build Joe Ott rubber SE-5 Popular Aviation late Twentiesplans Bill Hannan out Joes own bookand having sworn never make another Quarter-Scale monster am building Quarter-Scale Piper Vagabond have met devil am tkeQLj 86 ft piloted Aristocratit has four flights Part euphoria due Air tronics XL system servo reversing exponential control Fred Marks wanted us try Ace Silver 7 new Ace Atlas servos compromised Silver 7 X-mitter compatible Aristocrats Airtronics except switch engine rudder plugs monsters behave precisely like real planes coordinate rudder aileron planes have differing amounts coordina tion Champion dorsal heavy rudder airplane lead Luscombes 10 Model Aviation aileron youve got problem timing rudder Don Srull Mad Test Pilot finds rudder left stick Aristocrat awkward because flies Scale Kraft single-stick could suggest amount rudder Fred would set up combo quick pot adjustments can adjust relative amounts coordinated aileron rudder throwmixer can switched off flight side forward slips possible slightest finger pressure against side stick produces gentle turn Figure-8 like falling off log gentle pressure other side stick produces crossover Ailerons sensitive either power stall hangs big ship nose-high forever Nose-high can walk rudder keep heading can still use aileron stall point Stinson 150 Once wing dropped slightly picked itself up Tartan Top Flite 18 x 6 pulls 25pounder off ground like say 40 Cadet climb-out near scale speed Mustang landing greases onno shocks needed Gear rigid thin scale tires landing skimmed dropped full stall Get real Vagabond PA-15 version no shocks Just doughnut tires real plane needs no shocks models talk lightplanes mostly flapless loading 20 oz per sq ft Aristocrats gear attached concentrated stress points adequate has two pieces 3/16 wire buried cantilever struts across fuselage bottom metal screw-on straps fuselage 11 wide bearing area almost sq ft So what can break Fast heavy Pitts etc really big engines may something elseand fighters racers 8-ft K&B 19-powered soarer has excellent power performance weighs 5 lbs plus Suppose hung 6-pound engine heavy would plane have to stay together Structure could climb least another 12 poundsgross near 20 pounds powerto-weight ratio engine mighty big factor Tartan light plan OS90 Vagabond since Tartan overkill March 1981 11 Covering Sigs Koverall heat-shrink material like polyester applied wet like silk edges doped down 50-50 butyrate Shrinking afterwards requires little heat rapid surface drum-like apply coat 50-50 followed coat 50-50 Lite-Coat Further shrinking desirable Lite-Coat eliminates typical butyrate pull takes place months applied third coat make sure no small leak-through areas followed two coats sprayed Sig color thinned 50-50 sort spraying needs Sig colored dope Lite-Coat delayed shrinking does continue Bill Cavanaugh DCRC once part owner Vagabond has pix everything fittings detailed 3-view Piper larger factory drawings parts some A- A-scale Srull has details Walt Mooneys beloved Vaga bond entirely yellow upholstery colors time well hide servos junk 7 ft plus 15 18 lb top one-season job Allow two see us Aristocraft ask fly cant dont know boil water want Joe Ott rubber SE-S Nieuport 17 tops bad can taste Vagabond comeLord willing Aldrich Chronicles 1946 Wichita Nats bare-foot kid named Davis Slagle upset CL world crudely built rather small super-light Stunter Ray Arden introduced glow plug following year Minneapolis funniest overkill shots weve ever seen same crew also started Winters big Aristocratbut shown pic Preston Herb Clukeys 1 4/2-Oz 46-in /2A Monocoupe Note Ctr Clukeys desparate two-hand hold R Hurst Bowers one-hand assist Don Srull holds back left hand flips prop Thats what Ouarter Scale doesto Wasa bit breezy day Monocoupe flew perfectly obtained model hung Don Grouts hobby shop Danbury CT analyzed JC Madman Yates scene year gave unforgettable demonstration Minneapolis Orwick 60 ignition Madman JC left spectators limp liked fly close ground Loops inverted wingovers always raised dust barely saw daylight between fin ground Strangely high stuff seemed free-flight lines bowing spectacularly Asked about answered Oh simply steer around dihedral still evening Olathe 1948 looked outs window saw kid flying silkysmooth spectacular maneuverswith dead en gine George Aldrich Olathe Bob Palmer huge 60 Chieflightweight first unequal semi-spansset us afire 947-48 between-season showed up agile flapped 35-powered models demonstrated awed nearby golf course Palmer Yates flying partners Yates flew Bobs glorious Sammy Mason Stear man Nats did pattern thought impossible Scale days Assistant Editor Ross McMullen still drools remem bered sight Young Aldrich idolized Palmer corre sponded enthusiastic kid years grew up bedroom ceiling covered various rubber kits mid-Thirties George tells us big brother Oliver bought Brown #102 1935 first win Scientific Victory prize book war stamps 1942a nice Korda miniature Atom 42a Vivell 35 45-46 1946 Bantam 19 started winning FF Learned fly CL Ameco Trainer Bunch Tiger Traded McCoy 60 Won EF again Buzzard Bombshell Barker #285 stolen landed saw CL fly inverted George goes Dinky Box Car K&B 29 first loops Cyke monsters towed around Finally big Cut Up Anderson Spitfirepulled out pieceContinued page 123 l\l ~ ALook ma no handle Sketch made photo CL World Champs report Italys Modelliztica 12 Model Aviation whole tleet nilatlon fightersdesigns using 90% foam-core board balsa plywood reinforcement Theyre easyto build due box-type construction diamond airfoil text Seeing believing Mark Sr rii ruvuer power Spitfire 6-ft MonoKoted spray-painted sand-and-spinach colors Originally flown AC retarded 23 found meet Astro Flights wing loading specs Astro 15 prop drive put Works Out all-up weight under5/2 lb has fused motorand in-flight controls high cruise shut-off Idea look extended high flights playing throttle works Between thetime Winter submitted column details text captions written electric Spit fire flown bunch timeswowing everyone saw Smooth unassisted takeoffs infinitely controllable flights 6-7 minutes easily picture Preston Mark Srull holding framework second slightly lighter version will basis MA article get nylon fabric weather balloon fabric available fabric stores might find surplus parachute however old chutes coated much harder sew recommend kite ripstop New parachute fabric really best ordered 125 ripstop nylon COD National Parachute Supply phone 800-526-5946 Find someone sewing experience read instructions sewing machine correct needle machine setting thin fabric weather balloon purchased premiums specialty advertising supply Gate ways Unlimited Washington DC will ship reusable white four-foot weather balloons COD phone 202-726-8957 Being author Project Snapshot probably expect put camera balloon Well Ive got seldom enough light inside large auditorium Make plans see us next indoor meet Hampton Coliseum Virginia coming spring can just imagine aerial photo indoor balloon blimp rally Fun/Winter Continued page 12 Go Devil designed Bob Palmer recuperating accident cost him right hand die-cutting Madman parts Note Bob tells us forced design special glove right hand order manage lines could handle pull 60 hence 35 jobs 1948and entire country went smaller Stunt jobs years first flapped Stunt ship started trend todays state Bob informs us saw HA Thomas sketch same system published Air Trails big San Antonio meet continues George big Zilches Note Jim Saftig made Zilch famouskits Berkeley Jim killed student froze stick took next logical step Palmer Veco Warrior full-length wing flaps flapped ships would corner better just before Go Devil Russ Snyder Laredo TX showed us first real pattern Zilch Orwick 64 1946 first loop goat Scientific Mercury Note now popular Old-Timer RC Don Still winning loops eights 30 feet Big brother Oh kept bugging usdo smooththats way real airplane does maneuvers 1949 Nats George recalls first time met Bob beautiful Chiefs sent first Chief off line note written boxand signature 16 Thirty-odd Chiefs later 1950 Nats told something missing Nobler came models Note using coupled flaps elevator RC Nobler kitted RC pattern model Top Flite years laterthey also kitted CL Nobler Chief# 1 stretched-fuselage Chief#3 #2 clued An old Warrior wing short Go Devil-type flaps two inches wide mounted shortened fuselage two inches between trailing edge LE stab K&B 29 glowwhat fun fly Start outside loop around 45-60 degrees inverted about three feet off pop full down itwouldstop dead still hanging its prop long down held Ease off would start off inverted pop full down would stop again George warms task figured Chief bouncy turbulation downwash off wing So #3 built using Chief wing 12 inches between wingTE stab LE compromise Nobler moments trying resemble Caudron 1936 school age 17 did first Nobler plan 1950 Showed Don Stillwe fierce competitors thenand told 1976 sure hoped would build because looked like. Navy judges Olathe didnt like big smooth pattern Walt Stevensons judges did like Detroit Note Plymouth Internats did first article flying Speed Mono-Line Foxy fun ship long moment flaps Quick 60 plans Leo Holliday Note MAN columnist editor Pacemaker first really 24 Cu inch 32 HP 8000 RPM 8 lbs 3 Ring Piston Ball Bearings Crank Sealed Points 095 SHIPPING ON PRE-PAID ORDER * * * Dealer Inquiries Welcome ** ** ** ** ROUSH MFG P0 Box 251 Sandyville OH 44671 Ph 216/866-9462 216/4844374 competitive diesel ship United States Note spite Tuckers win 1947 Drone diesel Out competition things got unfriendly Some wouldnt speak Some would fly got model outthis early 60s still flew FF Indoor etc own amusement George would like fly 60 Nobler next Nats took second FF 51 NatsMcCoy 19 Zeek Also first Dallas Southwesterns about 1964 Blew everybodys mind sez Dont doubt blew being CL champ Dallas Nats quick out-of-sights 11 oclock boomers RC guys stick around Next month well have some fantastic stuff George about engines fuels CL people bit Bob Palmer Nice FF stuff too Inflation Fighters effort help March 1981 123 RISING STAR IN \GIANT SCALE ENGINES 1 YEAR WARRANTY WARRANTY OR SERVICE WORK CAN BE DONE BY ROUSH MFS OR BY YOUR NEAREST SCRO-KIORITZ PRODUCTS DEALOR PIVOT SCREW NUT r1 problem pod mountingespecially itself-designed scratchbuiltis thrust line adjustment Raised thrust moment rotates nose downward varying degrees up-thrust may required knows may want down Clever arrangement drawing seen Lu Modele Reduit dAvion credited JC Villachon Toulose France AV36 MONOBLOc FRENCH FLYING WING GLIDER ri II Winter sez hes never built wing flying wings planks fasci nate himtheres less work theyre different 3-view based upon construction Scale article Gerad Peierre-Bes French magazine Le Modele ReduitdAvion Its FauveIAV-36 search ideas John G Chapis Seaford DE writes am submitting photos models built using inflation fighters tech nique construction method 90% foamcore board balsa plywood reinforcement Unique sport builder Scale appeal ease assembly due box-type construction easy-building diamond airfoil Coupled lifting stab makes models super-stable just plain fun fly commercial thought plans two trainersan ME 109 Spitfire both 2-3 channels 19-30 four advanced models AT-6 Stearman Pitts Corsair 3-4 channels 35-40are available Connies Copies Rt 1 Box 209C Seaford DE 19973 $500 set postpaid Continued page 126 REVENGER 60-Size Pattern Designed Revenge can sweet new Revenger pattern design can win 65-inch span laminar-flow wing 700 square-inch area helps perform AMA-FAI man euvers new kind smooth ness can read about May 1978 RC Modeler Revenger comes highly prefabricated balsa fuselage assembled sanded Foam wing panels stabilizer presheeted sanded vertical fin Dick Russ rudder presanded shape contest quality balsa Just join wing panels stab add vertical fin Install retracts engine radio mounts cover paint youre ready complete Total weight 8Y4 8 3/4 lbs Revenge can sweet Revenger. pattern design can See nearest hobby shop first win with$1 full line brochure write L MERCHANT 554 E Fronton St. BrownaviN. TX 7U20 124 Model Aviation PRE5ENT5 BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO x /2 INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 ADJ THRUST ANGLE POD -1-THRUST ANGLE New Westchester County Center White Plains York Dont miss 13th annual show Itll biggest best ever Keep next last weekend February open. 1981 WRAMs Show going larg est yet Well over 150 manu facturers other exhibiters have already signed up bring everything thats new hobby. kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes almost new radios engines on something just about everyone Static Competition Make sure latest creation finished up polished youll have chance take home dozens trophies offered events ww POST 51W IMltvy POST 5151 lNOv-MlIuryI PATTERN SPORT BIPLANE OLO TIMERS SPORT PYLON GLIOE B S HELICOPTERS SCALER C BOATS RACiNOB CBOATS STANOOPP SCALE JUNIOR EVENTS B CCARS BE STN 5 HOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become major show attractions thousands mdi vidual Items changing handsTo help elIminate registration crush 1981 Swap Shop will provide tor pre registratIon forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because ot increased volume items being brought Swap Shop combined space limita tions oniy built-up model will accepfed Swap Shop registrant further information write Larry OiRubho t67 LIndsey Ave. Buchanan NY 10511 914 739-2827 WESICCESTER RADIO AEROMODELERS INC February 21/22 Weicvesie cv,, ce,e cenIraII Iocaied nine ciy oi inv,OPa,s N Yaiiherne,cionoi Ri ii9 ceniral PaSA. Bon B, Panhay Wflie pIans n ,si22rnIsnnnnifloiNvc scratch-building kits models available Chapall Model Products Box 441 Ridgely MD 21660 two trainers presently $2995 plus $250 postage handling advanced sport models will follow soon cost everything going up construction method can give modeler less too have licked two problems some folks object diamond foils acceptable Riley Wooten old Combat king used some purists dont like sharp line along high-camber point really ought let deter since foam-core board brittle OK reinforced must used flats bending cracks Weve got licked can roll foam-core board quite easily airfoil wish curved fuselage bellies etc concept RC trainer does have hand-launched taken-offlittle wheels small ships dont well So first using various diameter rods potes thick wooden curtain pole best rolled foamcore like pizza crust does compress bit remains quite strong does crack retains curve thus ideal perplexing 10AM 6 PM curved top wing baffles guys use cardboard Use flat foam-core bottom wingyou dont need spars just wood leading edge maybe TE too can shaped sanded maybe too can rolled practice one-piece wing just few ribsala Walkers old Fireball nose-mounted engine opted low start launching short monofilament line very short piece rubber strand maybe 10 feet foot being rubber position ship five 10 feet air launching arc allows towline drop series small vertical brass tubes belly allows adjustment ship engine running correct post-launch attitude ready steered Drive stake ground walk crate around until faced wind have half-size version made sheet balsa no engine just hand glide tests check configuration plane vastly scaled down version endur ance effort RC Rosenstock around 1960 excellent flying machine exciting concept rusts cavort QuarterScale models Foam-core great ribs fuselage sides thin wood longerons needed small jobs critical cross pieces Use white glue want roll larger-span panels use two people long pole Herb Clukey tried nighteasy fast durable As Chapis suggests possibilities brightjust waiting Note MA has afoam-coare RC trainer construction project coming up very soon Electric Spitfire Guys successfully electric go ape mention can Simple story begins some years back Don Srulls son Mark made 6-ft lightweight RC scaled up Earl Stahl rubber model plans Incidentally Earl wing too far forward Mono Koted spray-painted old 23 cruises well retarded real Ghost-Scaler Combining forces Donwho did work dont catch old Bill sweating muchwe stalled Astro Flight 15 belt drive 13-8 heavy electric stuff big Spitter comes less 5 pounds has area match Bob Bouchers tough loading parameters Electric Scale barely missed loading 6-ft Porterfield Kopskis 6-ft J-3 see last issue Since have two receivers Airtronics XL used miniature XL servos something else since servo reversing allows us match X-mitter ship ship Advanced stick full throttle middle position cruise power back shut-off system fused Astros on-off-cruise control tiny thing allows sorts cruise combinations shutting off turning air shooting high long flights event ground mishap can shut off radio before damage done motor battery Taxiing wind machine around basement has unflap pable ancient excited indeed Weather permit ting just may have great news next month Wish us luck Other urges test sheet-balsa flying wing gliders future RC Like delta have major assembly instead three years wanted build mass little ROGswings deltas parasols bipesevery thing flying circus Unimaginable fun Some times simple things make happier Thanks guys tremendous inputwell get around answering everybody badger poor publisher space maga zine isnt made rubber Bill Winter 4330Alta Vizta Dr. Fairfax VA 22030 Letters Editor Continued page 6 free just enclose pre-addressed stamped business-size envelope request New Dimension RC Flight recent trend toward adoption symmet rical airfoil aerobatic aircraft nice practical design pilot flies up-side down often right-side up also answers novices common question response being told airfoil inherently designed provide lift upper surface means flight Bernoullis Theorem possible fly up side down However flight thus attained tilting whole airframe order achieve positive angle attack wing chord mode thrust angle also increased above direc 1 26 Model Aviation SHOW 81 WST8vNn n,cTvi iNC nNn