Theodore P. Hall, chief development engineer of Convair, designed flying automobile in which wing, tail and 190-hp Lycoming were all attached on top of specially designed 4-seat saloon car. Convair funded development of proposed ConvAircar, flown successfully November 1947, but wrecked on third flight after taking off without refuelling. Rights reverted to Hall, who formed T.P. Hall Engineering Corp., but never achieved production status.