Building Old-Timer vast majority Old-Timers Antiques employ tried truebuild two identical sides tie together cross members Little may said about except 1 sure make square cuts use small mitre box X acto has serviceable sticks over /8th square 2 sure longeron splices cut diagonal lo cated under upright members gluing area 3 radio models fill balsa sheetfrom aft wing hold-down dowel forwardthe areas between fuselage uprights Dont over it3/32 sheet fine largest models remember possible competition machine keep light easier add remove weight 4 Use firm balsa main fuselage longerons because take abuse also will prone pull under stress ever-tightening doped covering dont want model look like starved horse 5 Consider making 3/32 ply wood forward auxiliary firewall plug balsa would work too exactly square bulkhead used true up fuse lage used conjunction farthest forward cross members uprights longerons 6 Please worry about celluloid covered cabin area ing weak because its Wing In building wing must have decided what intend model build accordingly plan sport flying ship subjecting heavy G-loading beef up larger spars planking capstrips etc other hand meant competi tion standard free-flight sport soaring little planned high-G maneuvering build reasonably stock light case some strengthening order compensate powerful engines used extra weight carried form radio gear following suggested beef-ups competition model soaring sport model multispar wings such used Playboy built stock major modification needed use larger trailing edge stock Playboy notorious wing-flutter bird allowed pick up speed under power sturdy trailing edge can eliminate problem Tyro Models Playboy has considerably beefed-up wing theres no need heavier trailing edge version P&W rib kit corporates larger stringers spars should sufficient cure flutter must state model P&W did enlarge TE perhaps thiswas overkill model must judged its own design construction de cision beefing up As example Goldberg Sailplane Zipper Intercep tor sufficiently strong originally designed Ranger Buz zard Bombshell others use good judgment sure consider aspect ratio thickness etc Old Timers older Antique wings normally can stand addition balsa webbing tween top bottom main spars larger thicker dihedral braces gussets writer cut out some rib-andformer kits OOS Scien tific Mercury used contest prizes Old-Timer meet last fall winners subsequently built Merc later folded wing pressed details admitted making high speed inverted descent Perhaps magnesium dihedral braces order Tail Section horizontal verti cal stabilizers normally adequate strength lend themselves readily elevator rudder installation Simply follow accepted construction practices keep light An extra ounce requires ounces nose compensate constructing stab/elevator simply de termine desired size elevator lay out two spars pointthe ward back stab aft leading edge elevator can hinged plain nylon hinges such Rocket City Super Flex others since hinges light strong fine other RC installa tion elevator can proportionally small critical flying model way building nice elliptical stabs OldTimer designers loved try using balsa strips laminated leading trail ing edges will turn out light sturdy Jack Bollon true advent Hotstuff Zap etc construction simplicity itself Rudder construction standard follows stab sure use gen erous amounts rudder area throw will need bit try turn stable beast glide continued page 92 great favorite Thirties Miss America designed Frank Zaic kitted Scientific Heres Emil Agosta arm chair special Span 84 in. power OS Max 40 Covering silk tinted clear dope Plans will appear future issue good old summer time Shereshaw Mer cury climbs out Tom Kanakal stick Wed say Timer playing cool Ektfl~l MORE wiAFiOt-fl19 ase fl same powerYELLOW PROPELLEBladr ~e~&-354 O~-OBlade6364354 C-Pusher747678504 SZes each848688654 9-4 96 97 98 63 64~04 10685 8-6864 681 9-6 106 1 RC24 3BladeTractort2526150 53 54 63 64 5O GRUSH 3 Blade PusherBROS 63ST JOHN INDIANA 46373 RC Old-Timers/Bolton continued page 23 word caution careful power climb speed machine propwash now make rudder super sen sitive small steady-rate control inputs name game Control Installation controls stalled standard fashion prefer old hard-balsa square push/pullrods over other types seem have less flex temperature stable light weight Keep radio gear other weight far forward possible engine shutdown use floodoff system because instantaneous reliable causes less wear tear en gine fuel shutoff system causes en gine lean cutoff floodoff sys tem simplicity itself run engine pressure usually fitting replaces upper left back-plate screw Make Y, fitting middle fuel line attach line Ys go needlevalve fitting other open throat engine venturi Use small size surgical tubing line can pinched off easily servo activated rod has 90-degree bend end closest engine run surgical tubing out side firewall close proximity protruding rod 90-degree bend open throttle control pulling back rod squeezing tubing shut between rod firewall permits fuel flow needle valve rod can adjusted servo arm use clevis eliminate battery-draining servo stall though some servo stall exists its too critical since condition short lived because normal time engine run usually will exceed some 30 seconds time start engine floodoff Any way throttle control closed transmitter rod moves forward thereby releasing surgical tubing permitting unrestricted flow fuel venturi mouth instantaneous floodoff engine effected works time weight differential much over mechanical timers have choice shut down can save aircraft cases Thats very cursory look build ing Old-Timer RC Assist flying ma chine Next column well take look flying bird Contest Reports Received word Joe Beshar SAM Prexy outcome Beshar Rules Old-Timer RC return free-flight contest seems entire eastern sea board socked rain low ceilings except Lakehurst area 13 contestants participated apparently enjoyed activities basically experimental affair stipu lated no RC control could used ex cept rudder engine shutoff during climb nothing further until such time model either landed contes tant declared flight over return model field Additionally stipulated flight official model land large pre-desig nated area Winners Class Woody Woodman Class BD Meyers Class CAl Schwankert Down Pensacola Fiesta Five Flags Contest came off fine fashion two days beautiful flying weather cloudless skies light variable winds Some 59 contestants entered 19 events total over 300 entries Old-Timer events split Cabin Pylon ABC 020 Replica OT Rub ber class RC Assist Unfortunate ly conflict major Pattern contest set up Fort Walton RCers occurred same weekend Because several RC Assist people Safe Flying No Accident area couldnt make Fiesta So RC Assist entries limited three Ed Paul Smith Fort Lau derdale Lee Webster Tennessee Writer stayed out due being meet Contest Director Anyway Eds Scientific Mercury beat out Lees Tyro Playboy virtue Eds two 10-minute maxs third flight over six minutes Apparently imposed handicapping system permitting Antique entries mo tor run corresponding seven seconds per pound aircraft weight versus straight 20 seconds glow-powered Old-Timers reasonable outcome decided choice air Notes regret report passing Mr John Brennan Gerrish Island Kittery Point ME Readers may recall fine pictures Mr Brennans real old-timers action Massachusetts circa 1937 printed column June August issues Mrs Brennan writes models hung cellar home shall keep re minders patience love building offer sincere sym pathy first column pointed out risks involved trying document development RC Assist events Well apparently should have included Mr Richard Tanis North Jersey RC Club developers No slight intended hope sets record straight Veterans Day weekend Pensacola will observed among other things scheduling Gordon Scotty Mur ray Memorial Old-Timers Meet meant honor fittingly remember gallant talented model designer flier Scotty member Brooklyn SkyScrapers designer note Topper others fine contest flier first go war WWII gave life perpetual award being established named Topper Award given high-point contestant retain year until next meet Additionally event called Scottys Event established will restricted gas models designed Scotty special trophy will set up meet will have nine Old-Timer events six FF three RC four AMA FF will count toward High Point will have special awards top junior award scheduled event except AMAs meet being organized yourwriter CD Tom Mclaughlin People dire need news puts photos writeups sketches other thing directed toward RC Assist questions need answered drop us line SASE enclosed will try get answer Take care keep head swivel Jack Bolton 9521 Scenic Highway Pen sacola FL 32504 Ph 904 477-2055 92 Model Aviation
Edition: Model Aviation - 1976/10
Page Numbers: 23, 92
Building Old-Timer vast majority Old-Timers Antiques employ tried truebuild two identical sides tie together cross members Little may said about except 1 sure make square cuts use small mitre box X acto has serviceable sticks over /8th square 2 sure longeron splices cut diagonal lo cated under upright members gluing area 3 radio models fill balsa sheetfrom aft wing hold-down dowel forwardthe areas between fuselage uprights Dont over it3/32 sheet fine largest models remember possible competition machine keep light easier add remove weight 4 Use firm balsa main fuselage longerons because take abuse also will prone pull under stress ever-tightening doped covering dont want model look like starved horse 5 Consider making 3/32 ply wood forward auxiliary firewall plug balsa would work too exactly square bulkhead used true up fuse lage used conjunction farthest forward cross members uprights longerons 6 Please worry about celluloid covered cabin area ing weak because its Wing In building wing must have decided what intend model build accordingly plan sport flying ship subjecting heavy G-loading beef up larger spars planking capstrips etc other hand meant competi tion standard free-flight sport soaring little planned high-G maneuvering build reasonably stock light case some strengthening order compensate powerful engines used extra weight carried form radio gear following suggested beef-ups competition model soaring sport model multispar wings such used Playboy built stock major modification needed use larger trailing edge stock Playboy notorious wing-flutter bird allowed pick up speed under power sturdy trailing edge can eliminate problem Tyro Models Playboy has considerably beefed-up wing theres no need heavier trailing edge version P&W rib kit corporates larger stringers spars should sufficient cure flutter must state model P&W did enlarge TE perhaps thiswas overkill model must judged its own design construction de cision beefing up As example Goldberg Sailplane Zipper Intercep tor sufficiently strong originally designed Ranger Buz zard Bombshell others use good judgment sure consider aspect ratio thickness etc Old Timers older Antique wings normally can stand addition balsa webbing tween top bottom main spars larger thicker dihedral braces gussets writer cut out some rib-andformer kits OOS Scien tific Mercury used contest prizes Old-Timer meet last fall winners subsequently built Merc later folded wing pressed details admitted making high speed inverted descent Perhaps magnesium dihedral braces order Tail Section horizontal verti cal stabilizers normally adequate strength lend themselves readily elevator rudder installation Simply follow accepted construction practices keep light An extra ounce requires ounces nose compensate constructing stab/elevator simply de termine desired size elevator lay out two spars pointthe ward back stab aft leading edge elevator can hinged plain nylon hinges such Rocket City Super Flex others since hinges light strong fine other RC installa tion elevator can proportionally small critical flying model way building nice elliptical stabs OldTimer designers loved try using balsa strips laminated leading trail ing edges will turn out light sturdy Jack Bollon true advent Hotstuff Zap etc construction simplicity itself Rudder construction standard follows stab sure use gen erous amounts rudder area throw will need bit try turn stable beast glide continued page 92 great favorite Thirties Miss America designed Frank Zaic kitted Scientific Heres Emil Agosta arm chair special Span 84 in. power OS Max 40 Covering silk tinted clear dope Plans will appear future issue good old summer time Shereshaw Mer cury climbs out Tom Kanakal stick Wed say Timer playing cool Ektfl~l MORE wiAFiOt-fl19 ase fl same powerYELLOW PROPELLEBladr ~e~&-354 O~-OBlade6364354 C-Pusher747678504 SZes each848688654 9-4 96 97 98 63 64~04 10685 8-6864 681 9-6 106 1 RC24 3BladeTractort2526150 53 54 63 64 5O GRUSH 3 Blade PusherBROS 63ST JOHN INDIANA 46373 RC Old-Timers/Bolton continued page 23 word caution careful power climb speed machine propwash now make rudder super sen sitive small steady-rate control inputs name game Control Installation controls stalled standard fashion prefer old hard-balsa square push/pullrods over other types seem have less flex temperature stable light weight Keep radio gear other weight far forward possible engine shutdown use floodoff system because instantaneous reliable causes less wear tear en gine fuel shutoff system causes en gine lean cutoff floodoff sys tem simplicity itself run engine pressure usually fitting replaces upper left back-plate screw Make Y, fitting middle fuel line attach line Ys go needlevalve fitting other open throat engine venturi Use small size surgical tubing line can pinched off easily servo activated rod has 90-degree bend end closest engine run surgical tubing out side firewall close proximity protruding rod 90-degree bend open throttle control pulling back rod squeezing tubing shut between rod firewall permits fuel flow needle valve rod can adjusted servo arm use clevis eliminate battery-draining servo stall though some servo stall exists its too critical since condition short lived because normal time engine run usually will exceed some 30 seconds time start engine floodoff Any way throttle control closed transmitter rod moves forward thereby releasing surgical tubing permitting unrestricted flow fuel venturi mouth instantaneous floodoff engine effected works time weight differential much over mechanical timers have choice shut down can save aircraft cases Thats very cursory look build ing Old-Timer RC Assist flying ma chine Next column well take look flying bird Contest Reports Received word Joe Beshar SAM Prexy outcome Beshar Rules Old-Timer RC return free-flight contest seems entire eastern sea board socked rain low ceilings except Lakehurst area 13 contestants participated apparently enjoyed activities basically experimental affair stipu lated no RC control could used ex cept rudder engine shutoff during climb nothing further until such time model either landed contes tant declared flight over return model field Additionally stipulated flight official model land large pre-desig nated area Winners Class Woody Woodman Class BD Meyers Class CAl Schwankert Down Pensacola Fiesta Five Flags Contest came off fine fashion two days beautiful flying weather cloudless skies light variable winds Some 59 contestants entered 19 events total over 300 entries Old-Timer events split Cabin Pylon ABC 020 Replica OT Rub ber class RC Assist Unfortunate ly conflict major Pattern contest set up Fort Walton RCers occurred same weekend Because several RC Assist people Safe Flying No Accident area couldnt make Fiesta So RC Assist entries limited three Ed Paul Smith Fort Lau derdale Lee Webster Tennessee Writer stayed out due being meet Contest Director Anyway Eds Scientific Mercury beat out Lees Tyro Playboy virtue Eds two 10-minute maxs third flight over six minutes Apparently imposed handicapping system permitting Antique entries mo tor run corresponding seven seconds per pound aircraft weight versus straight 20 seconds glow-powered Old-Timers reasonable outcome decided choice air Notes regret report passing Mr John Brennan Gerrish Island Kittery Point ME Readers may recall fine pictures Mr Brennans real old-timers action Massachusetts circa 1937 printed column June August issues Mrs Brennan writes models hung cellar home shall keep re minders patience love building offer sincere sym pathy first column pointed out risks involved trying document development RC Assist events Well apparently should have included Mr Richard Tanis North Jersey RC Club developers No slight intended hope sets record straight Veterans Day weekend Pensacola will observed among other things scheduling Gordon Scotty Mur ray Memorial Old-Timers Meet meant honor fittingly remember gallant talented model designer flier Scotty member Brooklyn SkyScrapers designer note Topper others fine contest flier first go war WWII gave life perpetual award being established named Topper Award given high-point contestant retain year until next meet Additionally event called Scottys Event established will restricted gas models designed Scotty special trophy will set up meet will have nine Old-Timer events six FF three RC four AMA FF will count toward High Point will have special awards top junior award scheduled event except AMAs meet being organized yourwriter CD Tom Mclaughlin People dire need news puts photos writeups sketches other thing directed toward RC Assist questions need answered drop us line SASE enclosed will try get answer Take care keep head swivel Jack Bolton 9521 Scenic Highway Pen sacola FL 32504 Ph 904 477-2055 92 Model Aviation