Mitsubishi Q2M Taiyo

The Mitsubishi Q2M Taiyo, meaning Great Sea or Ocean, was a design derived from the Mitsubishi Ki-67-I Hiryu heavy and torpedo bomber of the Japanese Army and from its Naval variant, the Yasukuni. It was ordered for design and construction in the last stages of the Second World War. The plan called for a crew of five or six, two Mitsubishi Kasei 25 Otsu 14-cylinder radial engines of about 1,353 kilowatts each driving five-blade propellers, a length of 18.75 metres, a wingspan of 25 metres and a top speed of 490 kilometres per hour. Technical troubles and a long development of the theoretical design kept it from advancing beyond paper plans before the war ended.