u.s. illustration

U.S. military ‘flying jeeps’ as seen in Avro Canada’s company literature - In 1955 the U.S. Air Force took over funding of Avro engineer ‘Jack’ Frost’s VZ-9 Avrocar ‘Project Y-2′ with the hope of developing a supersonic large disk fighter aircraft, designated as Weapons System 606A. Progress with the design was slow - by April 1961 the NASA Ames prototype model was able to reach a speed of 100 knots (190 km/h or 118 m/h), and while this test had the best results so far, more modifications were still necessary to correct an unstable pitch problem. A USAF/NASA flight evaluation of a second prototype was made in June 1961 - the results were very disappointing showing a range of control problems. In March 1961, U.S. funding ran out. In December 1961 the U.S. military officially cancelled the Avrocar and related WS-606A supersonic VTOL (vertical take-off and landing) programs.  (image via wikipedia)