Nakajima B6N Tenzan
The Nakajima B6N Tenzan (天山, Heavenly Mountain) (Allied reporting name: "Jill") was the Imperial Japanese Navy's standard carrier-borne torpedo bomber during the final years of World War II and the successor to the Nakajima B5N. Due to its protracted development, a shortage of experienced pilots and the United States Navy's achievement of air superiority by the time of its introduction, the B6N was never able to fully demonstrate its combat potential. == Design and development == The B5N carrier-based torpedo bomber's weaknesses had shown themselves early in the Second Sino-Japanese War; as well as updating that aircraft, the Imperial Japanese Navy began seeking a faster, longer-ranged replacement.