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Posted 6/25/2009 Printable Fact Sheet
Douglas YB-11
Douglas YB-11. (U.S. Air Force photo)
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The Douglas YB-11 was based on the U.S. Navy XP3D-1 seaplane. The Air Corps ordered a scaled-down version of the aircraft incorporating design changes for amphibious operation (on land and sea). The aircraft was redesignated as an observation plane (YO-44) before construction was completed. The plane was again redesignated as an observation amphibian (YOA-5) when the Air Corps accepted it.

The YB-11 was the only amphibian ever to carry an Army Air Corps bomber designation.

Type Number built/
YB-11 1 Became YO-44 then YOA-5

Armament: Three .30-cal. machine guns
Engine: Two Wright R-1820-45 Cyclone radials of 800 hp each
Maximum speed: 169 mph
Span: 89 ft. 9 in.
Length: 69 ft. 9 in.
Height: 22 ft. 0 in.
Weight: Approx. 20,000 lbs. loaded
Serial number: 33-17

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