AFTER having remained unbeaten, and almost unchallenged, since December 11, 1924—when Adjudant Bonnet in a Ferbois monoplane with a 550 h.p. Hispano-Suiza engine achieved a speed of 448·171 kilometres per hour (278·486 m.p.h.)—the world's landplane speed record has at last been exceeded though not officially beaten. During the course of the Eleventh National Air Race Meeting, held at Cleveland, Ohio, from August 27th to September 5th, Major J. Doolittle achieved a considerably higher speed over a 3-kilometre course. The average speed attained in the three runs was 476·726 k.p.h. (296·287 m.p.h.), the speed on one run being 497·245 k.p.h. (309·040 m.p.h.). This compares with the “absolute” air speed record, set up by Flight-Lieutenant G. H. Stainforth in a Supermarine S.6 B. seaplane, with a Rolls-Royce 2,300 h.p. engine, on September 29th, 1931, of 655 k.p.h. (407·5 m.p.h.). Unfortunately Major Doolittle's performance cannot be put forward as a new record owing to his failure to carry a barograph during the flight.
The World's Fastest Landplane
Major J. Doolittle's 800 h.p. Pratt and Whitney Wasp-Engined Granville Monoplane Described
Aircraft Engineering and Aerospace Technology ; 4 , 11 ; 285-286
01.11.1932
2 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Emerald Group Publishing | 1932
|Engineering Index Backfile | 1946
Engineering Index Backfile | 1946
Engineering Index Backfile | 1932
Seaplane or landplane for transoceanic service
Engineering Index Backfile | 1941
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