Nakajima A4N

The Nakajima A4N, the Navy Type 95 Carrier Fighter and internal design YM, was a carrier-based biplane fighter of the Imperial Japanese Navy and the last biplane Nakajima designed. It was a further development of the private-venture A2N, powered by a Nakajima Hikari 1 nine-cylinder radial engine driving a Hamilton two-blade metal propeller and armed with 7.7 mm Type 97 machine guns. The first prototype was completed in 1934, but engine trouble delayed service until 1936. It escorted G3M bombers in the Second Sino-Japanese War and was among the types that attacked the gunboat USS Panay in 1937, before the Mitsubishi A5M monoplane succeeded it. A total of 221 were built.