Originated 1942 at Malton, Ontario, under Canadian Ministry of Munitions and Supply, to take over and manage Malton aircraft factory of National Steel Car Corporation to speed production of Avro Lancaster bombers. First Victory built Lancaster delivered to RAF in August 1943. Total production 430, including seven unarmed mailplanes for transatlantic government service operated by Trans-Canada Air Lines; these were forerunners of the Lancastrian post-war transport version of the Lancaster. One Avro Lincoln Mk XV bomber built 1945. Company acquired from Canadian government in July 1945 by Hawker Siddeley Aircraft Company Ltd, becoming A. V. Roe (Canada) and subsequently designing first Canadian jet fighter.