In 1922, the first all-metal airplane, Nakajima Type B-6 was completed. It was modeled after the Breguet 14. The Type B-6 and named “Kei-Gin Go (light silver)” since the revolutionary light weight metal at that time, duralumin, was used. It was revealed at the “Peace Memorial Tokyo Exposition” and got high reviews.
Engine: Rolls Royce water cooled V12, 360hp
All Aero 