First flight of a twin engined helicopter (McDonnell XHJD-1 Whirlaway)

Saturday, April 27, 1946



The aircraft was equipped with a pair of Pratt and Whitney R-985-AN-14B, air-cooled radial engines.

Source: "McDonnell XHJD-1 Whirlaway", Smithsonian National Air and Space Museum web page, Last accessed 06 Feb 2019


Aircraft related to this milestone
McDonnell XHJD-1 Whirlaway