Title: A review of vertical takeoff and landing technology in the National Airspace System : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives, One Hundred Seventh Congress, first session, May 9, 2001.
Authors: United States.
Publisher: U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O. [Congressional Sales Office],
Year: 2001
Subjects: Vertically rising aircraft United States.; Tilt rotor aircraft United States.; Aeronautics, Commercial Technological innovations United States.