The Nakajima B6N Tenzan was a Japanese carrier-based torpedo-bomber aircraft of the Second World War, code named Jill by the Allies, designed to an Imperial Japanese Navy specification of 1939 for a replacement to the Nakajima B5N. Problems with the design delayed the
Nakajima B6N from entering production until 1943. The Nakajima B6N2 was powered by a 1850 hp Mitsubishi MK4T Kasei 25 14- cylinder radial piston engine that provided a top speed of 480 kmh and a range of 3045 km. Armaments consisted of a 7.7 mm machine-gun mounted on a trainable mount in the rear cockpit and one 7.7 mm machine-gun fired through a ventral tunnel, and either one 800 kgtorpedo or 800 kg of bombs. Research Nakajima B6N
 
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