Escort fighter Nakajima Ki-53
In 1939
Rikugun Koku Honbu instructed the Nakajima company to start design work on a twin-engine, multi-seat fighter, named Ki-53
Shisaku Taza Sentoki (Experimental Multi-seat Fighter Aircraft, 試作多座戦闘機). In contrast to the two-seat, twin-engine heavy fighter Kawasaki Ki-45
Toryu, the new aircraft was intended solely to escort bombers. Ki-53 should be flying within formations of heavy bombers and protect them from attacks by enemy fighters. It should be characterized by a very strong armament, and its performances should be comparable to heavy bombers performance. Although Ki-53 has been described as a fighter, it had not necessary capabilities for individual dog-fighting. He was rather a heavily armed element of bomber formations (a kind of gunship) and was even originally called
Bakugeki Engoki (Bomber Escort Aircraft, 爆撃掩護機).
Ki-53 project was canceled at a very preliminary stage. Instead of building from scratch as a dedicated aircraft, the Nakajima company had proposed to develop heavily armed version of its heavy bomber Ki-49
Donryu, designed to perform the same tasks: escort bombers. The new machine received the designation Ki-58. Any planned tactical and technical data of Ki-53 are not known.
More little-known Japanese aircraft and projects see:
http://e-samoloty.blogspot.com/ (unfortunetely only in Polish).
Regards,
LAW