unduy F Sunday sport RCer 049 rudder-only pulse job inexpensive cinch build Ken Willard WHEN WAS ASKED Model vi ion design rudder-only pulse job modelers still enjoying least costly phase RC flying sug gested might try low-wing design just something different So sketched out nice looking little job put together test flew confirmed opinion formed long time ago lowwing models rudder-only control dont mix well Oh yes can get fly lots have flown good rudder-controlled aircraft just cant equal high-wing design So discarded low-wing idea design will used later rudder elevator control started over time went back basics best design rudder-only control sim ple Design good free-flight sport modelone will fly well radio control properly adjusted will recover stalls turns dives itself resume normal flight attitude Back early days radio control Don Mathis got radio enthusiasts riled up remarking radio-controlled airplanes just free-flight models flight path occasionally inter rupted turning rudder time right Now phisticated systems RC planepar ticularly competitive precision contest designis long way being good free-flight model go point recover command So rudder job use good freeflight design made easy years ago1938 exactModelAir plane News published CAVU para sol monoplane designed old Elf ignition engine Ive still got itthe October1976 27 Right The old master fun-model designs himself Sunday Sportsterthe ship reflects direct no-nonsense approach exam pie below simple strut arrangement stay-put gear STRAPPING TAPE TOP S BOTTOM E SUNDAY WINGS CATALOG NO 13L65I7TCTV EACH TIP DIHEDRAL DETAL EPOXY BUTT JOINT -Li-\i7--_ TE _ N I I HATCH RETAINING RUBBER TOP CROSSPECE STRETCHED BETWEEN SCREWS 0000 M6SHEET FIREWALL 3/32k PLYWV16PLYWOOO HATCH CUTOUT x IONAL TIP PLATES 1/16 PLYWOOD I/B DOWEL LG RUBBER BAND PAPER CLIP WIRE BENOTOADJUST ELEVATOR MONOKOTE STRIPHINGE 4 MOUNTING PLATE 1/16 ACE STOMPERCSEE PLYWOOD ACE INSTRUCTIONS V16WOOO V COX ORC049 POPSICLE STICK STRUTS HOOKS SHAPED FROMCUT B SHAPED1/16 PLYWOOD CRADLE PAPER CLIP WIRE WINDSHIELD FRONT OF PLASTIC CANOPY WLLIAMS BROS PILOT SWITCHSCRAP BLOCK 1/16 SHEET TOP7 LI____I/16SHEET I_ iT~-MCK____________NYLON BEARING _____SOLDER___ ___ LIGHT FOAMI/iS SHEET 1/16 PLYWOODLG LOCAT WIG BLOCKS CUT FROM COFFEE STIR StICKSLG I/16MUSIC WIRE SOLDER WHEEL COLLARI 1/2 WHEELS TAILWHEEL WIRE 1/16 MUSIC WIRE SUNDAY SPORTSTER DESIGNED & DRAWN BY KEN WILLARD TRACED FOR MODEL AVIATION BY RAY BORDEN 0I23456 N 0 0 CD 0 0 Sunday Sportster engine mean What smooth little sew ing machine use basic force setup add some modern touches go So did result Sunday Sportstera little smaller because wanted use Cox QRC 049 quietest running en gine can get Also Ace Stomper pulse unit ideally suited 35 wing span model another reason Ace Sunday Wings could used saving lot time building repairing Yes repair right after first flightnot models fault though test glides good fired up QRC hand launched model As turned out didnt have quite enough downthrust model promptly nosed up nearly broke control stick transmitter trying push down elevator forgotten rudder control model noses up turn out climb So stalled crashed broke prop Pretty embarrassing no serious damage except ego After adding bit downthrust changing props tried again Thats needed went up nice left turn just like good sport free-flight should Once got up flew around fun engine ran out gas let free flight glidea nice gentle right turn guided back run wayand again approached ground found myself trying give some up-elevator flare landing Habit hard break After few flights began remember limitations rudder control live themlike model starts drift downwind want come back just keeps climbing wind fairly strong cant make headway So come back upwind apply rudder get model spiral dive neutralize levels out nose headed wind let come up slightly again apply rudder horizontal rudder roll wind model will going faster usual will penetrate Keep rolling way until upwind re sume normal flying repeat rolls goes downwind again loop just get enough altitude give model rudder hold until spiralling down rapidly Let up rudder excess speed will make model nose up over loop Takes bit practice youll enjoy Building Sunday Sportster just about simple can get fuse lage slabsider triangu lar stock top longeron carve away excess wood round off model has appearance rounded hatch turtledeck lines straight dont have pin things together fact because impatient having already built model put whole fuselage together using Zap except epoxying firewall place went together couple hours cabane structure made four struts carved streamline shape using popsicle sticks basic material wing cradle cut 1/16 plywood shaped fit undersurface Sunday Wings whole structure Zapped together fuselage sides have careful align two sides uniformly wing rests both right incidence shown little wire hooks rubber bands holding wing should epoxied wing cradle Either want use Zap add some microballoons along side wire give better retaining sur face Either way make sure se cureyou dont want come loose flight unless want spectacular crashcontinued page 78 October1976 29 controlbut can rolls loopsl Rudder swings side side following transmitted pulses gives smooth proportional effect air Fuselage Monokoted wing Solarfllm jaunty looks Kens design may seam vaguely familiara Piatenpol Heath Parasol QT perhaps foam wings Aces Sunday Wings Just join panels centerthats Since Cox QRC 049 quietest engine can get small ship can flown small fields RC Sport/Van Putte continued page 21 book contest directors new CDs can avoid pitfalls con test has no matter what size Are volunteers Another thing noticed contests far year flying quality has im proved lower classes especially Advanced class old Class B D Novice D Expert setup Class B now called Advanced used lowpopulation hodgepodge fliers widely varying ability First fliers became impatient earning graduation Class now called Novice promoted themselves Class B older fliers unwilling compete group low Class despite lack fly ing competence flew Class B Finally Class winners earned way out class really tore up competition Class B what Ive seen lately Novice class graduates going have sur prise coming get Advanced recent contests competed half dozen fliers would have won virtually old Class B contests Its also interesting compare qual ity maneuvers done various classes large percentage maneu vers Advanced Expert Masters identical often nearly impossible tell what class flier looking portion flight because quality flying good Perhaps reason people flying well competitors flying outstanding airplanes given contest over half contestants will flying Don Lowes Phoenix 6 Joe Bridis Dirty Birdy would imagine relative numbers airplane versus other would vary depending whether contest nearer East coast West coast two out number rest combined FOR THOSE interested building Phoenix 6 plan install retractable landing gear let share suggestion problems airplane plans show nose gear retracting leading edge wing Doing requires cutting bulkhead front end RC compartment scooping out front wing Its difficult properly weakens both wing fuselage However dont have go trouble because plans wrong nose fiberglass fuselage longer shown plans motor mount normally installed longer required order kit order out firewall motor mount installed Purchase Fox mount fit engine put engine far back mount will go still leave room fuel tubing fuel pump Purchase 2 Goldberg spinner because has skirt rear prop allows en gine installed further forward normal Determine distance rear spinner rear Fox mount distance nose airplane front firewall Mark location firewall fuselage make cardboard template fit fuselage point Cut fire wall 5-ply ood mark drill holes Fox mount re tract nose gear install firewall using polyester resin epoxy have done everything carefully will ob tain 1 prop clearance nose gear will retract fuselage front wing THE 1976 Jim Kirkland Memorial joined ranks major pattern contests drawing 89 contestants eight states Over 200 enjoyed now-famous Satur day night shrimp feast Rhett Miller proved still has together winning Masters event third year row Rhett com petition could handle Jim Whitley finished 15 points back Jim edged out Ron Chidgey served notice hes back flying better has years Ron flew new Atlas now being kitted Southern RC Products Atlas appears fly slower either Phoenix 6 Dirty Birdy least smooth pre cise either three other again two weeks later Atlanta Phoe nix City contest time Rhett Miller won again Ron Chidgey managed beat Jim Whitley partly because Jim aileron problems due water getting aileron pot transmitter open gimbal assembly initial con test sponsored Conley Fliers CD Marty Farron put together contest remembered Saturday social hour contest headquarters Ad miral Benbow Inn free contestants wives helpers enjoyable contest pattern fliers Southeast should plan attend next year ONCE IN WHILE modeler shakes rest us up creation Ed Fluery Detroit Aero Modelers club Eds scaled up Skylark has wingspan 14 feet weighs about 18 pounds few details own words fuselage built sheet balsa hardwood longerons plywood bulkheads wing built up hard /8 square balsa ribs capped basswood spars Y8 balsa capped 3/ x ce aircraft silk dope gears made up 3/16 spring steel wire its little shakey am going make up regular oleo struts using heavier construction control system powered Kraft steel control cables bellcranks throughout ship has flown yet ex pect have air July 4th hope Ed good luck Ron Van Putte 12 Connie Dr Shah marFL 32579 Sunday Sportster/Willard continued page 29 Tail surfaces balsa sheet No sur prises Maybe Note have elevator its inoperative hinging stab Zapping cou ple short lengths wire across hinge line can make small adjust ments elevator having reglue stab Use small paper clip wire its soft yet firm enough take air loads wing standard Ace Sunday Wing Catalog No 13L65 get four panels enough two wings Sun day Sportster kit pre cut ends right dihedral angle epoxy two panels together center add reinforcing strap ping tape Are wondering about tip pan els Well way am since wing ends both cut same angle thought would look nice modern have wing-tip plates slant out slight anglea simple variation conical tips some planes have Theo retically should delay tip stall give same effect slightly longer wing just thought looked nice dont make standard type tipit probably wont make notice able difference model size Maybe will want experiment since have two sets wings Make other tip plates notice big difference let know Id real interested covering model used three methods First fuselage covered Monokote Second nose en gine area painted Hobbypoxy keep fuelproofed Third wing cov ered Solarfilm because shrinks up lower temperature Monokote wont melt foam wing sure test temperature first have Yes know looks something like Pietenpol Davis Heath parasol Q-Tee way see theyll qualify Sun day Sportsters Fly about same Theyre just named different Originally thought naming model Super CAVU thought too flying back 1938 name might mean much Sunday Sportster makes sense Its todays Sunday sport fliers Like 78 Model Aviation
Edition: Model Aviation - 1976/10
Page Numbers: 27, 28, 29, 78
unduy F Sunday sport RCer 049 rudder-only pulse job inexpensive cinch build Ken Willard WHEN WAS ASKED Model vi ion design rudder-only pulse job modelers still enjoying least costly phase RC flying sug gested might try low-wing design just something different So sketched out nice looking little job put together test flew confirmed opinion formed long time ago lowwing models rudder-only control dont mix well Oh yes can get fly lots have flown good rudder-controlled aircraft just cant equal high-wing design So discarded low-wing idea design will used later rudder elevator control started over time went back basics best design rudder-only control sim ple Design good free-flight sport modelone will fly well radio control properly adjusted will recover stalls turns dives itself resume normal flight attitude Back early days radio control Don Mathis got radio enthusiasts riled up remarking radio-controlled airplanes just free-flight models flight path occasionally inter rupted turning rudder time right Now phisticated systems RC planepar ticularly competitive precision contest designis long way being good free-flight model go point recover command So rudder job use good freeflight design made easy years ago1938 exactModelAir plane News published CAVU para sol monoplane designed old Elf ignition engine Ive still got itthe October1976 27 Right The old master fun-model designs himself Sunday Sportsterthe ship reflects direct no-nonsense approach exam pie below simple strut arrangement stay-put gear STRAPPING TAPE TOP S BOTTOM E SUNDAY WINGS CATALOG NO 13L65I7TCTV EACH TIP DIHEDRAL DETAL EPOXY BUTT JOINT -Li-\i7--_ TE _ N I I HATCH RETAINING RUBBER TOP CROSSPECE STRETCHED BETWEEN SCREWS 0000 M6SHEET FIREWALL 3/32k PLYWV16PLYWOOO HATCH CUTOUT x IONAL TIP PLATES 1/16 PLYWOOD I/B DOWEL LG RUBBER BAND PAPER CLIP WIRE BENOTOADJUST ELEVATOR MONOKOTE STRIPHINGE 4 MOUNTING PLATE 1/16 ACE STOMPERCSEE PLYWOOD ACE INSTRUCTIONS V16WOOO V COX ORC049 POPSICLE STICK STRUTS HOOKS SHAPED FROMCUT B SHAPED1/16 PLYWOOD CRADLE PAPER CLIP WIRE WINDSHIELD FRONT OF PLASTIC CANOPY WLLIAMS BROS PILOT SWITCHSCRAP BLOCK 1/16 SHEET TOP7 LI____I/16SHEET I_ iT~-MCK____________NYLON BEARING _____SOLDER___ ___ LIGHT FOAMI/iS SHEET 1/16 PLYWOODLG LOCAT WIG BLOCKS CUT FROM COFFEE STIR StICKSLG I/16MUSIC WIRE SOLDER WHEEL COLLARI 1/2 WHEELS TAILWHEEL WIRE 1/16 MUSIC WIRE SUNDAY SPORTSTER DESIGNED & DRAWN BY KEN WILLARD TRACED FOR MODEL AVIATION BY RAY BORDEN 0I23456 N 0 0 CD 0 0 Sunday Sportster engine mean What smooth little sew ing machine use basic force setup add some modern touches go So did result Sunday Sportstera little smaller because wanted use Cox QRC 049 quietest running en gine can get Also Ace Stomper pulse unit ideally suited 35 wing span model another reason Ace Sunday Wings could used saving lot time building repairing Yes repair right after first flightnot models fault though test glides good fired up QRC hand launched model As turned out didnt have quite enough downthrust model promptly nosed up nearly broke control stick transmitter trying push down elevator forgotten rudder control model noses up turn out climb So stalled crashed broke prop Pretty embarrassing no serious damage except ego After adding bit downthrust changing props tried again Thats needed went up nice left turn just like good sport free-flight should Once got up flew around fun engine ran out gas let free flight glidea nice gentle right turn guided back run wayand again approached ground found myself trying give some up-elevator flare landing Habit hard break After few flights began remember limitations rudder control live themlike model starts drift downwind want come back just keeps climbing wind fairly strong cant make headway So come back upwind apply rudder get model spiral dive neutralize levels out nose headed wind let come up slightly again apply rudder horizontal rudder roll wind model will going faster usual will penetrate Keep rolling way until upwind re sume normal flying repeat rolls goes downwind again loop just get enough altitude give model rudder hold until spiralling down rapidly Let up rudder excess speed will make model nose up over loop Takes bit practice youll enjoy Building Sunday Sportster just about simple can get fuse lage slabsider triangu lar stock top longeron carve away excess wood round off model has appearance rounded hatch turtledeck lines straight dont have pin things together fact because impatient having already built model put whole fuselage together using Zap except epoxying firewall place went together couple hours cabane structure made four struts carved streamline shape using popsicle sticks basic material wing cradle cut 1/16 plywood shaped fit undersurface Sunday Wings whole structure Zapped together fuselage sides have careful align two sides uniformly wing rests both right incidence shown little wire hooks rubber bands holding wing should epoxied wing cradle Either want use Zap add some microballoons along side wire give better retaining sur face Either way make sure se cureyou dont want come loose flight unless want spectacular crashcontinued page 78 October1976 29 controlbut can rolls loopsl Rudder swings side side following transmitted pulses gives smooth proportional effect air Fuselage Monokoted wing Solarfllm jaunty looks Kens design may seam vaguely familiara Piatenpol Heath Parasol QT perhaps foam wings Aces Sunday Wings Just join panels centerthats Since Cox QRC 049 quietest engine can get small ship can flown small fields RC Sport/Van Putte continued page 21 book contest directors new CDs can avoid pitfalls con test has no matter what size Are volunteers Another thing noticed contests far year flying quality has im proved lower classes especially Advanced class old Class B D Novice D Expert setup Class B now called Advanced used lowpopulation hodgepodge fliers widely varying ability First fliers became impatient earning graduation Class now called Novice promoted themselves Class B older fliers unwilling compete group low Class despite lack fly ing competence flew Class B Finally Class winners earned way out class really tore up competition Class B what Ive seen lately Novice class graduates going have sur prise coming get Advanced recent contests competed half dozen fliers would have won virtually old Class B contests Its also interesting compare qual ity maneuvers done various classes large percentage maneu vers Advanced Expert Masters identical often nearly impossible tell what class flier looking portion flight because quality flying good Perhaps reason people flying well competitors flying outstanding airplanes given contest over half contestants will flying Don Lowes Phoenix 6 Joe Bridis Dirty Birdy would imagine relative numbers airplane versus other would vary depending whether contest nearer East coast West coast two out number rest combined FOR THOSE interested building Phoenix 6 plan install retractable landing gear let share suggestion problems airplane plans show nose gear retracting leading edge wing Doing requires cutting bulkhead front end RC compartment scooping out front wing Its difficult properly weakens both wing fuselage However dont have go trouble because plans wrong nose fiberglass fuselage longer shown plans motor mount normally installed longer required order kit order out firewall motor mount installed Purchase Fox mount fit engine put engine far back mount will go still leave room fuel tubing fuel pump Purchase 2 Goldberg spinner because has skirt rear prop allows en gine installed further forward normal Determine distance rear spinner rear Fox mount distance nose airplane front firewall Mark location firewall fuselage make cardboard template fit fuselage point Cut fire wall 5-ply ood mark drill holes Fox mount re tract nose gear install firewall using polyester resin epoxy have done everything carefully will ob tain 1 prop clearance nose gear will retract fuselage front wing THE 1976 Jim Kirkland Memorial joined ranks major pattern contests drawing 89 contestants eight states Over 200 enjoyed now-famous Satur day night shrimp feast Rhett Miller proved still has together winning Masters event third year row Rhett com petition could handle Jim Whitley finished 15 points back Jim edged out Ron Chidgey served notice hes back flying better has years Ron flew new Atlas now being kitted Southern RC Products Atlas appears fly slower either Phoenix 6 Dirty Birdy least smooth pre cise either three other again two weeks later Atlanta Phoe nix City contest time Rhett Miller won again Ron Chidgey managed beat Jim Whitley partly because Jim aileron problems due water getting aileron pot transmitter open gimbal assembly initial con test sponsored Conley Fliers CD Marty Farron put together contest remembered Saturday social hour contest headquarters Ad miral Benbow Inn free contestants wives helpers enjoyable contest pattern fliers Southeast should plan attend next year ONCE IN WHILE modeler shakes rest us up creation Ed Fluery Detroit Aero Modelers club Eds scaled up Skylark has wingspan 14 feet weighs about 18 pounds few details own words fuselage built sheet balsa hardwood longerons plywood bulkheads wing built up hard /8 square balsa ribs capped basswood spars Y8 balsa capped 3/ x ce aircraft silk dope gears made up 3/16 spring steel wire its little shakey am going make up regular oleo struts using heavier construction control system powered Kraft steel control cables bellcranks throughout ship has flown yet ex pect have air July 4th hope Ed good luck Ron Van Putte 12 Connie Dr Shah marFL 32579 Sunday Sportster/Willard continued page 29 Tail surfaces balsa sheet No sur prises Maybe Note have elevator its inoperative hinging stab Zapping cou ple short lengths wire across hinge line can make small adjust ments elevator having reglue stab Use small paper clip wire its soft yet firm enough take air loads wing standard Ace Sunday Wing Catalog No 13L65 get four panels enough two wings Sun day Sportster kit pre cut ends right dihedral angle epoxy two panels together center add reinforcing strap ping tape Are wondering about tip pan els Well way am since wing ends both cut same angle thought would look nice modern have wing-tip plates slant out slight anglea simple variation conical tips some planes have Theo retically should delay tip stall give same effect slightly longer wing just thought looked nice dont make standard type tipit probably wont make notice able difference model size Maybe will want experiment since have two sets wings Make other tip plates notice big difference let know Id real interested covering model used three methods First fuselage covered Monokote Second nose en gine area painted Hobbypoxy keep fuelproofed Third wing cov ered Solarfilm because shrinks up lower temperature Monokote wont melt foam wing sure test temperature first have Yes know looks something like Pietenpol Davis Heath parasol Q-Tee way see theyll qualify Sun day Sportsters Fly about same Theyre just named different Originally thought naming model Super CAVU thought too flying back 1938 name might mean much Sunday Sportster makes sense Its todays Sunday sport fliers Like 78 Model Aviation
Edition: Model Aviation - 1976/10
Page Numbers: 27, 28, 29, 78
unduy F Sunday sport RCer 049 rudder-only pulse job inexpensive cinch build Ken Willard WHEN WAS ASKED Model vi ion design rudder-only pulse job modelers still enjoying least costly phase RC flying sug gested might try low-wing design just something different So sketched out nice looking little job put together test flew confirmed opinion formed long time ago lowwing models rudder-only control dont mix well Oh yes can get fly lots have flown good rudder-controlled aircraft just cant equal high-wing design So discarded low-wing idea design will used later rudder elevator control started over time went back basics best design rudder-only control sim ple Design good free-flight sport modelone will fly well radio control properly adjusted will recover stalls turns dives itself resume normal flight attitude Back early days radio control Don Mathis got radio enthusiasts riled up remarking radio-controlled airplanes just free-flight models flight path occasionally inter rupted turning rudder time right Now phisticated systems RC planepar ticularly competitive precision contest designis long way being good free-flight model go point recover command So rudder job use good freeflight design made easy years ago1938 exactModelAir plane News published CAVU para sol monoplane designed old Elf ignition engine Ive still got itthe October1976 27 Right The old master fun-model designs himself Sunday Sportsterthe ship reflects direct no-nonsense approach exam pie below simple strut arrangement stay-put gear STRAPPING TAPE TOP S BOTTOM E SUNDAY WINGS CATALOG NO 13L65I7TCTV EACH TIP DIHEDRAL DETAL EPOXY BUTT JOINT -Li-\i7--_ TE _ N I I HATCH RETAINING RUBBER TOP CROSSPECE STRETCHED BETWEEN SCREWS 0000 M6SHEET FIREWALL 3/32k PLYWV16PLYWOOO HATCH CUTOUT x IONAL TIP PLATES 1/16 PLYWOOD I/B DOWEL LG RUBBER BAND PAPER CLIP WIRE BENOTOADJUST ELEVATOR MONOKOTE STRIPHINGE 4 MOUNTING PLATE 1/16 ACE STOMPERCSEE PLYWOOD ACE INSTRUCTIONS V16WOOO V COX ORC049 POPSICLE STICK STRUTS HOOKS SHAPED FROMCUT B SHAPED1/16 PLYWOOD CRADLE PAPER CLIP WIRE WINDSHIELD FRONT OF PLASTIC CANOPY WLLIAMS BROS PILOT SWITCHSCRAP BLOCK 1/16 SHEET TOP7 LI____I/16SHEET I_ iT~-MCK____________NYLON BEARING _____SOLDER___ ___ LIGHT FOAMI/iS SHEET 1/16 PLYWOODLG LOCAT WIG BLOCKS CUT FROM COFFEE STIR StICKSLG I/16MUSIC WIRE SOLDER WHEEL COLLARI 1/2 WHEELS TAILWHEEL WIRE 1/16 MUSIC WIRE SUNDAY SPORTSTER DESIGNED & DRAWN BY KEN WILLARD TRACED FOR MODEL AVIATION BY RAY BORDEN 0I23456 N 0 0 CD 0 0 Sunday Sportster engine mean What smooth little sew ing machine use basic force setup add some modern touches go So did result Sunday Sportstera little smaller because wanted use Cox QRC 049 quietest running en gine can get Also Ace Stomper pulse unit ideally suited 35 wing span model another reason Ace Sunday Wings could used saving lot time building repairing Yes repair right after first flightnot models fault though test glides good fired up QRC hand launched model As turned out didnt have quite enough downthrust model promptly nosed up nearly broke control stick transmitter trying push down elevator forgotten rudder control model noses up turn out climb So stalled crashed broke prop Pretty embarrassing no serious damage except ego After adding bit downthrust changing props tried again Thats needed went up nice left turn just like good sport free-flight should Once got up flew around fun engine ran out gas let free flight glidea nice gentle right turn guided back run wayand again approached ground found myself trying give some up-elevator flare landing Habit hard break After few flights began remember limitations rudder control live themlike model starts drift downwind want come back just keeps climbing wind fairly strong cant make headway So come back upwind apply rudder get model spiral dive neutralize levels out nose headed wind let come up slightly again apply rudder horizontal rudder roll wind model will going faster usual will penetrate Keep rolling way until upwind re sume normal flying repeat rolls goes downwind again loop just get enough altitude give model rudder hold until spiralling down rapidly Let up rudder excess speed will make model nose up over loop Takes bit practice youll enjoy Building Sunday Sportster just about simple can get fuse lage slabsider triangu lar stock top longeron carve away excess wood round off model has appearance rounded hatch turtledeck lines straight dont have pin things together fact because impatient having already built model put whole fuselage together using Zap except epoxying firewall place went together couple hours cabane structure made four struts carved streamline shape using popsicle sticks basic material wing cradle cut 1/16 plywood shaped fit undersurface Sunday Wings whole structure Zapped together fuselage sides have careful align two sides uniformly wing rests both right incidence shown little wire hooks rubber bands holding wing should epoxied wing cradle Either want use Zap add some microballoons along side wire give better retaining sur face Either way make sure se cureyou dont want come loose flight unless want spectacular crashcontinued page 78 October1976 29 controlbut can rolls loopsl Rudder swings side side following transmitted pulses gives smooth proportional effect air Fuselage Monokoted wing Solarfllm jaunty looks Kens design may seam vaguely familiara Piatenpol Heath Parasol QT perhaps foam wings Aces Sunday Wings Just join panels centerthats Since Cox QRC 049 quietest engine can get small ship can flown small fields RC Sport/Van Putte continued page 21 book contest directors new CDs can avoid pitfalls con test has no matter what size Are volunteers Another thing noticed contests far year flying quality has im proved lower classes especially Advanced class old Class B D Novice D Expert setup Class B now called Advanced used lowpopulation hodgepodge fliers widely varying ability First fliers became impatient earning graduation Class now called Novice promoted themselves Class B older fliers unwilling compete group low Class despite lack fly ing competence flew Class B Finally Class winners earned way out class really tore up competition Class B what Ive seen lately Novice class graduates going have sur prise coming get Advanced recent contests competed half dozen fliers would have won virtually old Class B contests Its also interesting compare qual ity maneuvers done various classes large percentage maneu vers Advanced Expert Masters identical often nearly impossible tell what class flier looking portion flight because quality flying good Perhaps reason people flying well competitors flying outstanding airplanes given contest over half contestants will flying Don Lowes Phoenix 6 Joe Bridis Dirty Birdy would imagine relative numbers airplane versus other would vary depending whether contest nearer East coast West coast two out number rest combined FOR THOSE interested building Phoenix 6 plan install retractable landing gear let share suggestion problems airplane plans show nose gear retracting leading edge wing Doing requires cutting bulkhead front end RC compartment scooping out front wing Its difficult properly weakens both wing fuselage However dont have go trouble because plans wrong nose fiberglass fuselage longer shown plans motor mount normally installed longer required order kit order out firewall motor mount installed Purchase Fox mount fit engine put engine far back mount will go still leave room fuel tubing fuel pump Purchase 2 Goldberg spinner because has skirt rear prop allows en gine installed further forward normal Determine distance rear spinner rear Fox mount distance nose airplane front firewall Mark location firewall fuselage make cardboard template fit fuselage point Cut fire wall 5-ply ood mark drill holes Fox mount re tract nose gear install firewall using polyester resin epoxy have done everything carefully will ob tain 1 prop clearance nose gear will retract fuselage front wing THE 1976 Jim Kirkland Memorial joined ranks major pattern contests drawing 89 contestants eight states Over 200 enjoyed now-famous Satur day night shrimp feast Rhett Miller proved still has together winning Masters event third year row Rhett com petition could handle Jim Whitley finished 15 points back Jim edged out Ron Chidgey served notice hes back flying better has years Ron flew new Atlas now being kitted Southern RC Products Atlas appears fly slower either Phoenix 6 Dirty Birdy least smooth pre cise either three other again two weeks later Atlanta Phoe nix City contest time Rhett Miller won again Ron Chidgey managed beat Jim Whitley partly because Jim aileron problems due water getting aileron pot transmitter open gimbal assembly initial con test sponsored Conley Fliers CD Marty Farron put together contest remembered Saturday social hour contest headquarters Ad miral Benbow Inn free contestants wives helpers enjoyable contest pattern fliers Southeast should plan attend next year ONCE IN WHILE modeler shakes rest us up creation Ed Fluery Detroit Aero Modelers club Eds scaled up Skylark has wingspan 14 feet weighs about 18 pounds few details own words fuselage built sheet balsa hardwood longerons plywood bulkheads wing built up hard /8 square balsa ribs capped basswood spars Y8 balsa capped 3/ x ce aircraft silk dope gears made up 3/16 spring steel wire its little shakey am going make up regular oleo struts using heavier construction control system powered Kraft steel control cables bellcranks throughout ship has flown yet ex pect have air July 4th hope Ed good luck Ron Van Putte 12 Connie Dr Shah marFL 32579 Sunday Sportster/Willard continued page 29 Tail surfaces balsa sheet No sur prises Maybe Note have elevator its inoperative hinging stab Zapping cou ple short lengths wire across hinge line can make small adjust ments elevator having reglue stab Use small paper clip wire its soft yet firm enough take air loads wing standard Ace Sunday Wing Catalog No 13L65 get four panels enough two wings Sun day Sportster kit pre cut ends right dihedral angle epoxy two panels together center add reinforcing strap ping tape Are wondering about tip pan els Well way am since wing ends both cut same angle thought would look nice modern have wing-tip plates slant out slight anglea simple variation conical tips some planes have Theo retically should delay tip stall give same effect slightly longer wing just thought looked nice dont make standard type tipit probably wont make notice able difference model size Maybe will want experiment since have two sets wings Make other tip plates notice big difference let know Id real interested covering model used three methods First fuselage covered Monokote Second nose en gine area painted Hobbypoxy keep fuelproofed Third wing cov ered Solarfilm because shrinks up lower temperature Monokote wont melt foam wing sure test temperature first have Yes know looks something like Pietenpol Davis Heath parasol Q-Tee way see theyll qualify Sun day Sportsters Fly about same Theyre just named different Originally thought naming model Super CAVU thought too flying back 1938 name might mean much Sunday Sportster makes sense Its todays Sunday sport fliers Like 78 Model Aviation
Edition: Model Aviation - 1976/10
Page Numbers: 27, 28, 29, 78
unduy F Sunday sport RCer 049 rudder-only pulse job inexpensive cinch build Ken Willard WHEN WAS ASKED Model vi ion design rudder-only pulse job modelers still enjoying least costly phase RC flying sug gested might try low-wing design just something different So sketched out nice looking little job put together test flew confirmed opinion formed long time ago lowwing models rudder-only control dont mix well Oh yes can get fly lots have flown good rudder-controlled aircraft just cant equal high-wing design So discarded low-wing idea design will used later rudder elevator control started over time went back basics best design rudder-only control sim ple Design good free-flight sport modelone will fly well radio control properly adjusted will recover stalls turns dives itself resume normal flight attitude Back early days radio control Don Mathis got radio enthusiasts riled up remarking radio-controlled airplanes just free-flight models flight path occasionally inter rupted turning rudder time right Now phisticated systems RC planepar ticularly competitive precision contest designis long way being good free-flight model go point recover command So rudder job use good freeflight design made easy years ago1938 exactModelAir plane News published CAVU para sol monoplane designed old Elf ignition engine Ive still got itthe October1976 27 Right The old master fun-model designs himself Sunday Sportsterthe ship reflects direct no-nonsense approach exam pie below simple strut arrangement stay-put gear STRAPPING TAPE TOP S BOTTOM E SUNDAY WINGS CATALOG NO 13L65I7TCTV EACH TIP DIHEDRAL DETAL EPOXY BUTT JOINT -Li-\i7--_ TE _ N I I HATCH RETAINING RUBBER TOP CROSSPECE STRETCHED BETWEEN SCREWS 0000 M6SHEET FIREWALL 3/32k PLYWV16PLYWOOO HATCH CUTOUT x IONAL TIP PLATES 1/16 PLYWOOD I/B DOWEL LG RUBBER BAND PAPER CLIP WIRE BENOTOADJUST ELEVATOR MONOKOTE STRIPHINGE 4 MOUNTING PLATE 1/16 ACE STOMPERCSEE PLYWOOD ACE INSTRUCTIONS V16WOOO V COX ORC049 POPSICLE STICK STRUTS HOOKS SHAPED FROMCUT B SHAPED1/16 PLYWOOD CRADLE PAPER CLIP WIRE WINDSHIELD FRONT OF PLASTIC CANOPY WLLIAMS BROS PILOT SWITCHSCRAP BLOCK 1/16 SHEET TOP7 LI____I/16SHEET I_ iT~-MCK____________NYLON BEARING _____SOLDER___ ___ LIGHT FOAMI/iS SHEET 1/16 PLYWOODLG LOCAT WIG BLOCKS CUT FROM COFFEE STIR StICKSLG I/16MUSIC WIRE SOLDER WHEEL COLLARI 1/2 WHEELS TAILWHEEL WIRE 1/16 MUSIC WIRE SUNDAY SPORTSTER DESIGNED & DRAWN BY KEN WILLARD TRACED FOR MODEL AVIATION BY RAY BORDEN 0I23456 N 0 0 CD 0 0 Sunday Sportster engine mean What smooth little sew ing machine use basic force setup add some modern touches go So did result Sunday Sportstera little smaller because wanted use Cox QRC 049 quietest running en gine can get Also Ace Stomper pulse unit ideally suited 35 wing span model another reason Ace Sunday Wings could used saving lot time building repairing Yes repair right after first flightnot models fault though test glides good fired up QRC hand launched model As turned out didnt have quite enough downthrust model promptly nosed up nearly broke control stick transmitter trying push down elevator forgotten rudder control model noses up turn out climb So stalled crashed broke prop Pretty embarrassing no serious damage except ego After adding bit downthrust changing props tried again Thats needed went up nice left turn just like good sport free-flight should Once got up flew around fun engine ran out gas let free flight glidea nice gentle right turn guided back run wayand again approached ground found myself trying give some up-elevator flare landing Habit hard break After few flights began remember limitations rudder control live themlike model starts drift downwind want come back just keeps climbing wind fairly strong cant make headway So come back upwind apply rudder get model spiral dive neutralize levels out nose headed wind let come up slightly again apply rudder horizontal rudder roll wind model will going faster usual will penetrate Keep rolling way until upwind re sume normal flying repeat rolls goes downwind again loop just get enough altitude give model rudder hold until spiralling down rapidly Let up rudder excess speed will make model nose up over loop Takes bit practice youll enjoy Building Sunday Sportster just about simple can get fuse lage slabsider triangu lar stock top longeron carve away excess wood round off model has appearance rounded hatch turtledeck lines straight dont have pin things together fact because impatient having already built model put whole fuselage together using Zap except epoxying firewall place went together couple hours cabane structure made four struts carved streamline shape using popsicle sticks basic material wing cradle cut 1/16 plywood shaped fit undersurface Sunday Wings whole structure Zapped together fuselage sides have careful align two sides uniformly wing rests both right incidence shown little wire hooks rubber bands holding wing should epoxied wing cradle Either want use Zap add some microballoons along side wire give better retaining sur face Either way make sure se cureyou dont want come loose flight unless want spectacular crashcontinued page 78 October1976 29 controlbut can rolls loopsl Rudder swings side side following transmitted pulses gives smooth proportional effect air Fuselage Monokoted wing Solarfllm jaunty looks Kens design may seam vaguely familiara Piatenpol Heath Parasol QT perhaps foam wings Aces Sunday Wings Just join panels centerthats Since Cox QRC 049 quietest engine can get small ship can flown small fields RC Sport/Van Putte continued page 21 book contest directors new CDs can avoid pitfalls con test has no matter what size Are volunteers Another thing noticed contests far year flying quality has im proved lower classes especially Advanced class old Class B D Novice D Expert setup Class B now called Advanced used lowpopulation hodgepodge fliers widely varying ability First fliers became impatient earning graduation Class now called Novice promoted themselves Class B older fliers unwilling compete group low Class despite lack fly ing competence flew Class B Finally Class winners earned way out class really tore up competition Class B what Ive seen lately Novice class graduates going have sur prise coming get Advanced recent contests competed half dozen fliers would have won virtually old Class B contests Its also interesting compare qual ity maneuvers done various classes large percentage maneu vers Advanced Expert Masters identical often nearly impossible tell what class flier looking portion flight because quality flying good Perhaps reason people flying well competitors flying outstanding airplanes given contest over half contestants will flying Don Lowes Phoenix 6 Joe Bridis Dirty Birdy would imagine relative numbers airplane versus other would vary depending whether contest nearer East coast West coast two out number rest combined FOR THOSE interested building Phoenix 6 plan install retractable landing gear let share suggestion problems airplane plans show nose gear retracting leading edge wing Doing requires cutting bulkhead front end RC compartment scooping out front wing Its difficult properly weakens both wing fuselage However dont have go trouble because plans wrong nose fiberglass fuselage longer shown plans motor mount normally installed longer required order kit order out firewall motor mount installed Purchase Fox mount fit engine put engine far back mount will go still leave room fuel tubing fuel pump Purchase 2 Goldberg spinner because has skirt rear prop allows en gine installed further forward normal Determine distance rear spinner rear Fox mount distance nose airplane front firewall Mark location firewall fuselage make cardboard template fit fuselage point Cut fire wall 5-ply ood mark drill holes Fox mount re tract nose gear install firewall using polyester resin epoxy have done everything carefully will ob tain 1 prop clearance nose gear will retract fuselage front wing THE 1976 Jim Kirkland Memorial joined ranks major pattern contests drawing 89 contestants eight states Over 200 enjoyed now-famous Satur day night shrimp feast Rhett Miller proved still has together winning Masters event third year row Rhett com petition could handle Jim Whitley finished 15 points back Jim edged out Ron Chidgey served notice hes back flying better has years Ron flew new Atlas now being kitted Southern RC Products Atlas appears fly slower either Phoenix 6 Dirty Birdy least smooth pre cise either three other again two weeks later Atlanta Phoe nix City contest time Rhett Miller won again Ron Chidgey managed beat Jim Whitley partly because Jim aileron problems due water getting aileron pot transmitter open gimbal assembly initial con test sponsored Conley Fliers CD Marty Farron put together contest remembered Saturday social hour contest headquarters Ad miral Benbow Inn free contestants wives helpers enjoyable contest pattern fliers Southeast should plan attend next year ONCE IN WHILE modeler shakes rest us up creation Ed Fluery Detroit Aero Modelers club Eds scaled up Skylark has wingspan 14 feet weighs about 18 pounds few details own words fuselage built sheet balsa hardwood longerons plywood bulkheads wing built up hard /8 square balsa ribs capped basswood spars Y8 balsa capped 3/ x ce aircraft silk dope gears made up 3/16 spring steel wire its little shakey am going make up regular oleo struts using heavier construction control system powered Kraft steel control cables bellcranks throughout ship has flown yet ex pect have air July 4th hope Ed good luck Ron Van Putte 12 Connie Dr Shah marFL 32579 Sunday Sportster/Willard continued page 29 Tail surfaces balsa sheet No sur prises Maybe Note have elevator its inoperative hinging stab Zapping cou ple short lengths wire across hinge line can make small adjust ments elevator having reglue stab Use small paper clip wire its soft yet firm enough take air loads wing standard Ace Sunday Wing Catalog No 13L65 get four panels enough two wings Sun day Sportster kit pre cut ends right dihedral angle epoxy two panels together center add reinforcing strap ping tape Are wondering about tip pan els Well way am since wing ends both cut same angle thought would look nice modern have wing-tip plates slant out slight anglea simple variation conical tips some planes have Theo retically should delay tip stall give same effect slightly longer wing just thought looked nice dont make standard type tipit probably wont make notice able difference model size Maybe will want experiment since have two sets wings Make other tip plates notice big difference let know Id real interested covering model used three methods First fuselage covered Monokote Second nose en gine area painted Hobbypoxy keep fuelproofed Third wing cov ered Solarfilm because shrinks up lower temperature Monokote wont melt foam wing sure test temperature first have Yes know looks something like Pietenpol Davis Heath parasol Q-Tee way see theyll qualify Sun day Sportsters Fly about same Theyre just named different Originally thought naming model Super CAVU thought too flying back 1938 name might mean much Sunday Sportster makes sense Its todays Sunday sport fliers Like 78 Model Aviation