Junkers G 38

The Junkers G 38 was a large German four-engine transport aircraft that first flew in 1929. Two examples were built in Germany, and both flew as commercial transports within Europe in the years before the Second World War. The thick wing let onboard mechanics service the engines in flight, and the crew numbered seven. The first aircraft, registered D-2000, first flew on 6 November 1929 with four gasoline engines of two different sizes. In the 1930s the design was licensed to Mitsubishi, which built and flew six aircraft in a military bomber and transport configuration as the Ki-20.