Junkers Ju 60

The Junkers Ju 60 was a single-engined airliner built only as prototypes in Germany in the early 1930s to meet a Transport Ministry requirement for a German-built equivalent of the Lockheed Vega for Deutsche Luft Hansa. It was a sleek cantilever monoplane with wings skinned in the corrugated duralumin that had been a hallmark of Junkers designs, although it was the last Junkers aircraft to have that feature, and its main undercarriage units retracted. It carried two pilots and six passengers behind a single 470 kW Siemens engine. Luft Hansa evaluated it against the Heinkel He 70, which showed a top speed 75 km/h better, and development stopped before a third prototype was completed. The two that had been built later served the Luftwaffe as liaison aircraft until 1942, and the work done on the design formed the basis of the Ju 160.