Aichi chief engineer, Toshio Ozaki, developed the M6A1 Seiran to fulfill the requirement for a bomber that could operate exclusively from a submarine. Japanese war planners devised the idea as a signifies for striking directly at the United States mainland and other important strategic targets, like the Panama Canal, that lay thousands of kilometers from Japan. To help Seiran operations, the Japanese created a fleet of submarine aircraft carriers to bring the aircraft within striking distance. No Seiran ever saw combat, but the Seiran/submarine weapons program represents an ingenious blend of aviation and marine technologies.

This M6A1 was the final airframe constructed (serial number 28) and the only surviving instance of the Seiran in the planet. Imperial Japanese Navy Lt. Kazuo Akatsuka ferried this Seiran from Fukuyama to Yokosuka exactly where he surrendered it to an American occupation contingent.

Physical Description:
Wings rotated back, folded back to lie flat against the fuselage. two/three of each and every side of the horizontal stabilizer also folded down, likewise the tip of the vertical stabilizer.