Mitsubishi Ka-8

The Mitsubishi Ka-8, called the Experimental 8-Shi Two-seat Fighter by the Imperial Japanese Navy, was a prototype two-seat carrier-based fighter of the early 1930s. The Navy asked Mitsubishi and Nakajima for two-seat fighter designs in 1933 after showing interest in the concept as used by foreign air arms. Mitsubishi answered with a single-engined biplane of mixed wood and metal, with duralumin wing spars, a twin tail, a fixed tailwheel undercarriage, a Nakajima Kotobuki radial engine and three machine guns. Two were built. The second broke up in diving tests at Yokosuka on 16 September 1934, killing the observer, and the Navy then abandoned the two-seat carrier fighter category.