![]() The 1923 AM-1 was the first aircraft with an all-metal fuselage covered with sheet aluminium in the US. Designed to be a replacement for de Havilland DH-4 in mail and cargo duties, but test flights were disappointing, and stability problems brought an end to the project. Only one was built. Engine: Liberty 12, 400 hp Wing span: 50 ft 0 in Length: 32 ft 11 in Payload: 1575 lb Speed: 116 mph Stall: 44 mph Seats: 1 |