Junkers Ju 86

The Junkers Ju 86 was a monoplane bomber and civilian airliner built by the German manufacturer Junkers. It was designed in the mid-1930s to a specification for a modern twin-engined aircraft that could serve as both a high-speed airliner and a bomber, and Junkers answered with a low-winged all-metal monoplane with a smooth metal skin instead of the firm's traditional corrugated one. It was meant to use Junkers Jumo 205 diesel engines for fuel efficiency. The first prototype flew on 4 November 1934 with Siemens radial engines, and the third prototype, the first civil-configured aircraft, flew on 4 April 1935. Airlines including Deutsche Luft Hansa, South African Airways and Iberia flew the civil models, and air forces on both sides of the Second World War used the type.