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The Nakajima G10N Fugaku (Mount Fuji) was a design for a very heavy bomber capable of reaching the United States from bases in Japan while carrying a useful payload.
The G10N began life as a Nakajima private venture, Project Z, in April 1943. The Japanese military became interested in the project and later in 1943 Project Z became a rare joint Army and Navy project.
The first version of the aircraft was expected to be powered by six 5,000hp Nakajima Ha-505 thirty-six cylinder radial engines. These experimental engines were delayed, and so the G10N1 was redesigned to use six 2,500hp Nakajima NK11A radial engines. It was hoped that it would cruise at 32,810ft/ 10,000m, and would have the speed and armament to evade American defenders, but the aircraft was still at the design stage at the end of the war. It would have resembled a six-engined version of the American B-29, with a similar simple tubular fuselage, glazed nose and giant vertical tail surfaces.
Engine: Six Nakajima NK11A radial engines
Power: 2,500hp each
Span: 206ft 8 5/16in
Length: 131ft 2 13/16in
Loaded weight: 352,740lb
Max speed: 423mph
Armament: Four 20mm cannon
Bomb load: 44,092lb short range, 11,023lb against US