Progress in improvement of airplane engines demonstrated in test conducted by Wright Aeronautical Corp with Whirlwind 7-cyl air-cooled radial engine of 285 hp; results indicate that limiting features preventing much greater than 400 hr between overhauls are: need of regrinding exhaust valves, and amount of dirt introduced into engine through carburetor and lubricating oil.
400-hour endurance test of Wright Whirlwind R-760E-1
Aero Digest
Aero Digest ; 23 , n 3 ; p 50-51
1933
2 pages
Aufsatz (Zeitschrift)
Englisch
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