eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation
Edition: Model Aviation - 1980/11
Page Numbers: 24, 25, 26, 27, 28, 109, 110
eRo arid Scale event Sweden showed way super-smooth low-speed flying reminiscent Control Line Aerobatics LED BY Manager Monty Groves US World Championships team consistedof George Rose Bob Underwood Bob Wischer F4C Precision Scale class team international competition Standoff Scale Harold Parenti Ralph Jackson Bob Karlsson Bob alternate team member replacement George Buso Piper Navajo damaged week before competition began Scene Scale 80 Meet Rockliffe Airport near Ottawa Canada active civil aviation field edge airport has hangars housing Canadian National Aero nautical Collection Museum near models flown using portion runway formerly part military airbase Accommodations meals well banquet finale provided Carleton University Ottawa competitors supporters gathered during evenings social activities concurrent competition RC model sailboat racing Sail 80 conducted another site attracted 70 model yachts seven countries flight portion Standoff Scale have operation first two five flying days permit time lengthy static judging F4C Ralny foggy weather both days caused delays required postponement Standoff third round flights until late afternoon fourth day both first two days Standoff fliers treated ideal conditions no wind became immediately obvious Swedish team well prepared flights ultimate realism especially regard attainment reasonable approach scale speed Engines run rich 4-cycle planes flown manner similar Control Line Stunt maximum use throttle controL lightiy built airplanes World Champion model CAP 20 built test pilot Jean Rousseau France Its margin victory tout 5000 pointson flight meets end 24 Model Aviation CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPIOr1 First place US F4C Precision Scale team Lto R Bob Wischer Monty Groves team manager Bob Underwood George Rose George Rose second place Hawk P-6E modeled afterthe Ship Air Force Museum 1/2-point away first place Photo credits Flight photos Monty Groves others authors using 60 engines muffled aputtenng murmur climbing maneuver engines hardly broke two-cycle Swedes come prepared win Standoff Scale Before departing Canada team gathered together training camp session techniques polished claimed lightly loaded models could perform equally well wind Lars Helmbros 68-ia span AT-6 Harvard 75 pounds example light wing loading made possible realistic slow flight between maneuvers called upon increase speed maneuver dramatic burst power open throttle would send model hurdling through dive following climb immediate return cruising speed afterward Retractable landing gear added 10% flight score After second round already firmly possession first place AT-6 working landing- lights visible bright sunlight second place Mikael Carlsson flew WW Pfalz D-XII weighing less seven pounds flights performed low altitude climb ing diving entry maneuvers leveling off original height completing maneuver precisely same level throttle being constantly adjusted conditions Using same Pomilio PE2 biplane flown second place Woodvale two years ago Graham Smith England interrupted what would have clean sweep Sweden high static score good flight third round nosed out Kjell-Ake Elofssons Bucker Bestman third place Fred Coulson used Grumman Skyrocket win British NATS built new Grumman Ottawa deserved highest November 198025 Spitfires Mick Reeves Model foreground placed third F4C Volksplane VP2 finished third static judging fourth final standthe other sixth Standoff Scale two models back- ings built Joe McCollum Northern Ireland Hidden inside ground belonging Swedish team cowl HP 61 Gold Cup engine Bob Underwood latest Hiperbipe Minor damage landing gear second official flight required quick repairs also needed engine change Bob came prepared Photo right gives good lookatthe cockpit details Maps indoor pockets bag luggage compartment door key-operated lock colored fabric upholstery made stripping emulsion off color photograph bonding cloth 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPSS198O SCALE WORLD CHAMPIONS @1980 SCALE Bob Wischeis Piel Beryl makes smooth takeoff strong wind first official flight its third World Championship finished sixth time Relatively simple models predominate spite bonuses complexity Duncan Hutsons large Fournier motor-glider model on-board engine starterfor realistic in-air restarts prototype Photo rightgives good view highly-detailed instrument panel However lacked authenticity Mick Reeves Fournier seen Woodvale 1978 Note detailed canopy structure models homebuilt planes entered year RV3 Canadian Jack Swift 1/4-scale has Kraft 61 power weighs 1075 lb possesses extremely fine finish Another CAP 20 Rene Fouquereau France its third World Championships 1/4-scale powered OPS engine L Canadian Gerry FinglerR entered Cessna L-19 Bird Dog con structed molded ABS plastic Although damaged wind quickly repaired further official flights Canadas Frank Knowles obtainedthe highestflight score thisTiger Moth factor 1 50/a bonus allowed its being biplane undercambered wings tailskid landing gear CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE WORLD CHAMPION Curtiss XSBC-4 received low static score because documentation problems spite 0 its great detail its being relatively complex subject Swedens Kurt Lenna built Photo right gives close look landing gears screw-thread retraction mechanism btanaoff Scale winner Lars Helmbro Team Sweden North American AT-6 Harvard lightly-built model iscapable slow speed realistic flights right model makes retract gear demo flyby operating landing lights third place winner Pomillo bomber Graham Smith has great realism air Its first World Championships Woodvale 1 g78 November 1980 27 riis wsiwnu vvIuun r,uu test distance enter World Championships Ross Woodcock brought Australia features folding wings Although seriously damaged crash its first official flight can repaired Pfalz D-XII won second place Team Swedens Mikael Carlsson age 20 Championships youngest contestant Swedens Kiell-Ake ElofssOn used old nya bull nis oucer Bestmann entry Running rich 4-cycle 66 lb model able approach true scale speed flight Engine very well-muffled too 1980 SCALE WORLD CHAMPIONSHIPS @1980 SCALE WORLD CHAMPIONSHIPS@1980 SCALE WORLD CHAMPIONS @1980 SCALE static score Standoff Scale Panel lines simulated lightly spraying dark color aluminum finish retracting gear own design construction muffler After first round first place steadily declining flight scores pushed him back fifth spite 20% bonus Hal Parenti misfortune lean engine run first flight Bearcat Supertigre quit inopportune moment model far out going farther plane damaged landing Hal went work immediately make repairs foggy morning next day delayed round two until afternoon gave him time needed get plane alrworthy went make best flight meet Bob Karlsson brought well-tried Ryan PT-22 smaller lighter version plane used 1979 NATS flights uni formly good throttle being used best effect Bob remarked Ryan would fall out air flown slow Swedes flying Windecker Eagle Ralph Jackson flew last years NATS rebuilt include Rom Air actuated homemade retractable landing gear added pound its previous weight lean engine run kept first round flight score low engine quit during landin& Canadian team entered interesting uncommon aircraft Marcel Jonckheeres Stearman 4EM 66-in span weighed 7 pounds large wing area lightly loaded capable smooth realistic flight prototype Marcels model present museum short distance flying site Don Hatchs entry Cessna AG Truck complete dust spray mechanism Because high humidity Don wasnt successful getting dust flow type used fire extinguishers Don victim glitchy receiver air round two managed land plane damage offered use spare receiver Bob Underwood finished meet Continued page 109 28 Model Aviation Fred Coulson garnered highest static points Grumman Sky rocket used own retracts landing gear powered two OS 25s Panel lines simulated sprayed-on color Plane tendency nose over landing Finished fifth place Marcel ~riiri~vi uine proiotype epsas Rockliffe Muum flying site World Championships Its large wing area light weight combined realistic flights liked byjudges Cana., TUCK moael High humidity contest foiled attempts demonstrate operating crop-dusting system installed made spectacular low flights Bob Underwood loaned him radio replace malfunctioning Bob Karisson Ryan PT-22 Bob last-minute substitute US teamhe missed being regular member by1/2 point atthe79 Nats Ralph Jackson preparesthe rebuilt Windecker Eagle forflight ltgained pound weight addition homemade retracts airactuators US Third place Standor uie Learn 1-rom len UOD IarIsson Ralph Jackson Monty Groves manager Hal Parenti BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 2 oz HOT STUFF XXc LINEE EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec 1/2 OZ jV HOT STUFF GAP FILLING HIGH VISCOSITY-TIMED BOND 10 25 sec Use like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD %ad9t Ca P 0 BOX 836 SIMI CA 93062 522-0062 tenance Instructions TG-3A Glider Schweizer Aircraft Corporation Drawings National Archives Photos Documentary Photography black white 1361 ST Photo Sqd 1221 South Fern St Arlington VA 22202 Omcial USAF photos sale write price list ordering instructions 21298AC Front View XTG-3 21294ACTow Plane XTG-3 Background 21157AC Side View XTG-3 21296ACXTG-3 Takeoff Bungee Cor4 June 1979 Paint TG hy Bob Storck Color Aircraft Yellow Blue Color Insignia White Red Blue Black F0R MRGUSI ent meantime have System Alert refuses buzz turn transmitter off give fix try System FS NODupont NoAlert works time works properly ith systems mod forget 15123 98013about 17875Not critical 111361865H48 15044 17038Not critical Radio Technique/Myers Continued page 23 quick check oscilloscope showed exactly what happening wouldnt need oscilloscope see 6 volt DC meter lOOK resistance would work well Just connect between negative lead black wire signal lead orange wire turn receiver turn transmitter off few times Sometimes voltmeter will read positive volts some times zero transmitter off point may thinking its simple didnt start measure ment cut out other stuff Two reasons 1 didnt think time 2 needed System Alert wiring diagram wanted make worthwhile changes Knowing problem solution ob vious added 001 mfd capacitor series System Alert green wire Vs watt 1 megohm resistor base input transistor ground Ive supplied sketch too capacitor passes pulses blocks DC resistor insures input transistor turns off So buzzer must sound optimum values just values worked Ed says will make change production may turn out differAnother fix some people may want know about following frame-time resistor early Ace RC Silver Seven trans mitter encoders 270K R2 just above NE5044 has changed production 330 K reason change increase frame time l8ms adequate 2 3 4 5-channel receivers 22ms necessary 6- 7-channel re ceivers Paul Edmunds Pauls Re Omaha NE discovered need change fix worked out Paul Holsten Ace RC Mr Edmunds good enough write tell about Tom Runge president Ace good enough write tell change has made production have early models either swap 33OKforthe27OKordowhatldidIputaS6K resistor series 270K provisions shorting out again should need arise As happens sons 4-channel Cannon system uses 16 millisecond frame transmitter receiver servos want fly flight packs Ill need 18 ms option Mismatched frame times can lead poor servo performance Its much easier retime transmitter go inside receiver servo re-time match transmitter beauty S7 its easy make whatever change need Frame time wondering what Im talking about time required complete set control pulses plus required reset pulse Theres sketch illus trating elsewhere column Since control pulse per channel U BOX 3957TORRANCE CA 90510 frame time also period required repe titions control pulse individual servo servo designed stretch its control pulse over full frame time transmitter designed work fore given servo may work poorly another manufacturers transmitter since new transmitter will have time either longer causing servo somewhat sloppy about staying its rest position shorter causing servo act jittery Figur ing out what frame time servo wants can subject another whole column now play mix-and-match various servos suspect frame-time problems dont ploy well together Nats takes over December issue no Radio Technique until next year See George M Myers 70 Froehlich Farm Road Hicks vOle NY 11801 Scale WC/Wischers Continued page 28 Thats international cooperation its finest third Canadian team member Karel Solnicka also radio problems round two flight fortunate Piper Twin Comanche splattered itself vertically onto runway completely destroyed static scoring F4C Precision Scale completed models flown third flying day gusty turbulent windswith threat rain contrasted lack wind enjoyed Standoff fliers previous two days Strong crosswinds encountered times three days F4C flights Seven 20 entries made no flights damaged during takeoff Highest flight score day made Frank Knowles Tiger Moth November 1980 109 9 HL GLIDERS flfl 3 SATELLITE KITS EEE 17OLDTIMEGAS Send 25 5 RUBBER 3 NORDIC 1980 catalog 9 COMPETIT ION GAS FUEL DTTIMERS -$1075 FAI Model Supply Frank also scored best flight meet aided 15% bonus last round Standoff flown late fourth day after F4C round wind magically died flights expected trend toward complex planes take advantage bonuses has yet developed Only two F4C biplanes Knowles Tiger Moth Lennas Curtiss XSBC-4 re ceived 15% bonus others 5 10% class relatively simple planes Two years ago Woodvale twin appeared Ottawa two twins Standoff Complex twins require power fly safely pair of30 engines 60 total maximum F4C until 1983 does attract modelers George Roses Curtiss Hawk P6-E leader after first day flying Planes severely damaged wind included folding-wing Westland Widgeon Australia flown Ross Woodcock Cessna Bird Dog L-19 Gerry Fingler Bird Dogs complete exterior constructed molded ABS plastic sheetwhich included much detail such rivets though badly damaged flown following day no apparent visible blemishes Widgeon did fly again repairable Bob Underwoods new Hiperbipe replace ment lost 79 NATS suffered its first flight because poor engine run prompted Bob change engines improvement apparent later flights Mick Reeves Spitfire lost its lower engine cowl soon after takeoff rule requires model flown judged took effect give him zero score first flight Mick designed novel method cooling completely cowled HP 61 engine Air taken scoop under cowl ducted forward concerned about cooling effect weather should turn really hot system successful Mick entered two Spitfires class Third highest static score F4C awarded Joe McCollums Volksplane VP2 cockpit model pilot remarkable resemblance Joe including beard mous tache Inside Wee Joe called servos operate stick rudder pedals connected wires elevator rudder pilot flew plane feature gave Joe high ingenuity points VP2 detailed completely CAP 20 Jean Rousseau received highest static score factor eventually led first place finish Jean competitor use gear-reduction Webra engine Cooling became problem CAP Jean removed dummy engine obstructed air flow dis covered judges first flight lost result portion dummy engine replaced satisfy rule against removing thing after static judging engine over heated crucial third flight last meet plane dead- sticked landing just short circle appeared could spoil chance first place final day F4C flights George Rose first fly relative calm early morning high score flight put him apparent first place until Rousseaus score posted meets end latter emerged winner -point over Rose could have climactic ending least three model entries appearing third World Championships Rene Fouquereaus CAP 20 Bob Wischers Piel Beryl Terry Mellenys deHavilland Moth Minor best weathering job have ever seen nine-year-old P-Si B David Vaughan look well-used fighter missions Fournier Duncan Hutson homemade retract mechanism folding wings on-board engine starter in-the-air restarts Fournier few planes can use starter advantage flight option because practice used proto type Four entries models homebuilt planes Judges F4C Johnnie Carroll Ireland Paul Jones Canada Herbert Steinhauer West Germany Serge Zwahlen France John Preston US Judges Standoff Scale Dick Carson US Stephan Gray Canada John Preston U S Peter Merrick Canada ceremony memory Glen Sigafoose day funeral news death came shock attendance modeling fraternity owes debt gratitude Sigs shirts worn F4C team gifts Sig shirts received other World Champion ships RC Giant Scale/Beckman Continued page 31 would expect other words has standard model building techniquescomfort able us part adequate lower end Giant Scale range plans well-drawn clear suf ficient detail experienced modeler would recommend beginner youve experience built-up sheeted fuselage wing construction youll have no trouble understanding Dons plans Cowls canopies can problem big birds cowl built-up balsa ply shown plans should quite effective No information provided canopy hut mostly simple curves could made sheet plastic believe includes wind shield compound curve aftermost section possible section cut large bubble canopy would suitable Don may have canopy available time read warning several fittings control horns etc depend solder joints Although plans specify hard soldering brazing opinion necessary Soft solder so-called silver solders like Sta-brite have strength required summary Dons plans adequate experienced modelers lack detail needed beginners Built shown model should fairly light perform well Quadra similar engine Order Aero Plan 101 SW 2nd St Pompano Beach FL 33060 notes dont include price believe about $20 Future plan reviews presently have eight sets plans waiting line Its obvious now wont have time column space available until after flying season meantime what have hand listed below anyone interested particular plan cant wait send SASE Ill tell what can about list A-scale Liberty Sport Bucker Jungmeister Wendell Hostetler 1/ scale Druine Turbulent Doug MacBrien 275 scale Curtiss P-40E Bob Morse -scale Fairchild PT-19 Jim Folline -scale Piper L-4B Ken Runestrand 1 ft 1 meter scale Fokker DVIII Bill Wendt -scale Ercoupe Jim Messer Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 703 369-2432 RC Aerobatics/Van Putte Continued page 33 used technique Jim described very easy implement resulted un believable improvement ding resis tance tips new Phoenix 8 After foam wing sheeted flat piece balsa glued tip mark straight line along center tip airfoil 110 Model Aviation