Aichi S1A Denko
The Aichi S1A was a Japanese night fighter, intended to replace the Nakajima J1N1-S Gekkou (Allied code name Irving). Like the Gekkou, it was to be equipped with radar to counter the B-29 air raids over Japan. Development time for the S1A increased while trying to overcome design shortcomings, such as the insufficient power of the Navy’s requested Nakajima Homare engines, resulting in no aircraft being completed before the war ended.
Wooden mock-up of the Aichi S1A Denko being built 
Wooden mock-up of the Aichi S1A Denko being built 
Wooden mock-up of the Aichi S1A Denko being built