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Curtiss YP-20

 

curtissyp-20


During 1928 Curtiss was assigned the task of mating the 600hp Curtiss H-1640 Chieftain 12-cylinder air-cooled radial engine to the P-6 airframe. A USAAC contract was placed for three aircraft which were designated P-11s. In the event, the Chieftain proved unsatisfactory and the P-11 was abandoned (together with the projected Curtiss XP-14 that had been designed around this engine). Two of the airframes that had been ordered in January 1929 were completed as P-6Ds and the third, which was fitted with a 575hp Wright R-1820-9 Cyclone, was assigned the designation YP-20 on delivery in October 1930. It was later fitted with the V-1570 engine of the XP-22, complete with cowling, the cantilever main undercarriage members and three-blade propeller of this aircraft to become the XP-6E.

YP-20
575-hp Wright R-1820-9 Cyclone radial
Take-off weight: 1466 kg / 3232 lb
Empty weight: 1124 kg / 2478 lb
Wingspan: 9.60 m / 31 ft 6 in
Length: 7.24 m / 23 ft 9 in
Height: 2.79 m / 9 ft 2 in
Wing area: 23.41 sq.m / 251.98 sq ft
Max. speed: 301 km/h / 187 mph
tailwheel

 


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