Portsmouth Aerocar Major

The Aerocar was produced by Portsmouth Aviation and first flew on June 18^th 1947, piloted by its designer Major Frank Luxmoor. It made its debut at the 1947 SBAC show at Redllet on the Isle of Wight. It was given its certificate of airworthiness in September 1948 and was displayed at the first SBAC show at Farnborough the same year. Due to shortages and the economic climate the Aerocar never made production.

http://www.portav.com/docs/portav-downloads/portsmouth-aviation-aerocar.pdf