Junkers K 51 / Ki 20

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Junkers-Mitsubishi K 51 / Ki 20
Mitsubishi Ki-20
Type: bomber
Design country:

German EmpireGerman Empire German Empire


Junkers / Mitsubishi

First flight:




Production time:


Number of pieces:


The Junkers K 51 / Ki 20 was a modification of the G 38 passenger aircraft of the German Junkers Flugzeugwerk AG with the aim of constructing a bomber for the Imperial Japanese Army Air Force .


In 1931, the Japanese aircraft construction company Mitsubishi Nainenki Kabushiki Kaisha commissioned Junkers to convert the G 38 passenger aircraft into a large bomber, which was to be built in Japan as the Ki 20 type . The Dessau designers designed a type of model called the Junkers K 51 , which had only very minor changes to the G 38 passenger aircraft that was already in production. The license, construction plans and a shell were sold to the Japanese in 1932. In the same year, Mitsubishi began producing the bomber under the name Ki 20 . With the support of Junkers engineers and technicians, all-round defense using machine guns and a device for transporting 5,000 kg of bombs were integrated. After the strong bombers had been deployed a few times, they were retired in 1941.

Technical specifications

Parameter Data
crew 8th
span 44.00 m
length 23.20 m
height 7.20 m
Wing area 290.00 m²
Empty mass 16,400 kg
Takeoff mass 23,000 kg
drive 4 × Junkers L 88a
Starting power 3,200 PS (2,354 kW)
Top speed 210 km / h
Marching speed 206 km / h
Service ceiling 3,400 m


  • Günter Schmitt: The Junkers aircraft type book. The Junkers aircraft and the JFM aircraft, presented in texts, photos, data, tables and three-sided drawings. Anhaltische Verlagsgesellschaft, Dessau 1997, ISBN 3-910192-52-1 .
  • Günter Schmitt: Hugo Junkers and his aircraft. Transpress, Berlin 1988, ISBN 3-344-00303-8 .
  • K 51 (Ki 20) for Japan. In: Wolfgang Wagner: Hugo Junkers: Pioneer of Aviation - His Aircraft (Volume 24: Die deutsche Luftfahrt), Bernard & Graefe, Bonn 1996, ISBN 3-7637-6112-8 , pp. 302–303

See also

Web links

Commons : Mitsubishi Ki-20  - collection of pictures, videos and audio files