Mitsubishi 2MB2

2MB2
Role	Light bomber
National origin	Japan
Manufacturer	Mitsubishi
First flight	December 1925
Number built	1

The Mitsubishi 2MB2 or Experimental Washi-type Light Bomber was a prototype Japanese single-engined biplane light bomber of the 1920s. A single example was built for the Imperial Japanese Army, but no production followed.

In 1925, the Imperial Japanese Army issued a specification for a single-engined bomber, requesting responses from Mitsubishi, Nakajima and Kawasaki. To design an aircraft to meet this requirement, Mitsubishi hired the German designer Alexander Baumann, a professor at Stuttgart University, and former designer of Riesenflugzeug for Zeppelin-Staaken to supervise the design team, with Nobushiro Nakata as chief designer.

The team led by Baumann and Nakata designed a sesquiplane (i.e. a biplane with the lower wing much smaller than the upper) of mixed wood and metal construction. The high-aspect ratio wings were braced by struts arranged in a "W" shape forming a Warren truss, while the fuselage had a metal structure covered in fabric, carrying the crew of two who sat in open cockpits. The aircraft was powered by a single Mitsubishi Hi V-12 (Hispano-Suiza Lb) V12 engine driving a two-bladed fixed pitch metal propeller and had a fixed conventional landing gear. The aircraft carried up to 800 kg (1,800 lb) of bombs, with the pilot aiming two fixed forward firing machine guns, and the observer operating two flexibly mounted machine guns, one in a dorsal position and one in a ventral mount.

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