 Between 1923 and 1944, Canadian Vickers produced over 400 aircraft, some of which were original Vickers' designs while the remainder were other manufacturers' designs built under license.In July 1941, the Canadian government awarded Canadian Vickers a contract to produce PBV-1 "Canso" amphibians (a version of the Consolidated PBY Catalina flying boat) for the Royal Canadian Air Force.Many of the aircraft were delivered to the United States Navy as the PBV-1; also to the United States Army Air Forces as the OA-10A for rescue work.