History
The Junkers J.1 (Company Model J.4) was one of the most advanced airplanes produced during World War I. When most other plane were of wooden construction with wire braced wings, the J.1 was all metal, with cantilever wings and tailplane, and featured a .20 inch armored shell structure which served as the forward fuselage, protecting the engine, fuel tanks, and crew. The structure was covered mainly by corrugated aluminum, which was to become a Junkers trademark later copied by Henry Ford for his Tri-Motor. Powered by a 200 hp. Benz Bz IV 6 cylinder in-line water cooled engine, the aircraft had an empty weight of 3,885 lbs. and a gross weight of 4,787 lbs. This resulted in a very heavy and underpowered aircraft, but given the role of the aircraft and the state of the art at the time, it was still an impressive airplane. Comparing the type with modern lightplanes, a 65 hp.