Mitsubishi B5M

The Mitsubishi B5M was an Imperial Japanese Navy Air Service (IJNAS) land-based attack aircraft, originally intended for aircraft carrier use. The B5M was also given the long formal designation Navy Type 97 Mk.2 Carrier Attack Bomber (Japanese: 九七式二号艦上攻撃機) and Allied reporting name of Mabel. This aircraft was mistakenly known as the Nakajima Army 97 by the British. The B5M was designed in response to a 1935 specification for a new bomber for use on the IJNAS aircraft carriers (Mitsubishi Navy Experimental 10-Shi Carrier Torpedo Attacker). The machine was to have a crew of three, folding wings for flight deck storage, a speed of not less than 322 km/h (200 mph), a flight endurance of not less than seven hours, and the ability to carry at least 800 kg (1,760 lb) of bombs - a tall order for a single-engine aircraft of the mid-1930s. It was intended as a backup for the Nakajima B5N "Kate" torpedo bomber. Although designed as a carrier-based aircraft, it was relegated to land-based torpedo bomber duties in World War II. One-hundred twenty-five were built.

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