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Nakajima B5N

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The Nakajima B5N (Template:Lang-ja, Allied reporting name: "Kate") was the standard torpedo bomber of the Imperial Japanese Navy (IJN) for much of World War II.

While the B5N was substantially faster and more capable than its Allied counterparts, the TBD Devastator and Fairey Swordfish, it was close to obsolescence by 1941. Nevertheless, the B5N operated throughout the whole war, due to the delayed development of its successor, the B6N. In the early part of the Pacific War, flown by well-trained IJN aircrews and with its attacks coordinated with other types of aircraft, the B5N achieved particular successes at the battles of Pearl Harbor, Coral Sea, Midway, and Santa Cruz.

Although primarily used as a carrier-based aircraft, it was also used as a land-based bomber upon occasion. The B5N had a crew of three: pilot, navigator/bombardier/observer, and radio operator/gunner.

Contents

Design and development

The B5N was designed by a team led by Katsuji Nakamura in response to a 1935 specification by the Navy for a torpedo bomber to replace the Yokosuka B4Y. Internally designated Type K by Nakajima, it successfully competed with the Mitsubishi B5M for a production contract. The first prototype flew in January 1937 and was ordered into production soon afterwards with the full designation Type 97 Carrier Attack Bomber (kanjō kōgekiki or kankō for short [1] 九七式艦上攻撃機).[2]

File:Kate B5N1 Akagi dummy torpedo.jpg
Nakajima B5N1 "Kate" torpedo bomber taking off from the aircraft carrier Template:Ship

The B5N soon saw combat, first in the Sino-Japanese War, where combat experience revealed several weaknesses in the original B5N1 production model. These were mainly concerned with the lack of protection that the design offered its crew and fuel tanks. Keen to maintain the high performance of the type, the Navy was reluctant to add weight in the form of armour, and instead looked to obtaining a faster version of the aircraft in the hopes of out-running enemy fighters. The B5N2 was given a much more powerful engine, and various modifications were made to streamline it. Although its performance was only marginally better, and its weaknesses remained unremedied, this version replaced the B5N1 in production and service from 1939. It was this version that would be used by the Navy in the Attack on Pearl Harbor. Apart from this raid, the greatest successes of the B5N2 were the key roles they played in sinking the United States Navy aircraft carriers Template:USS, Template:USS and Template:USS.

The B5N served as the basis for a follow-on design, the B6N, which eventually replaced it in front-line service. The B5N continued to fly in secondary roles, such as training, target towing, and anti-submarine warfare. Some of the aircraft used for this latter purpose were equipped with early radars and magnetic anomaly detectors. B5Ns were also used as bombers during the unsuccessful defence of the Philippines in October 1944. Later in the war, they were also used for kamikaze attacks.

Altogether, around 1,150 were built; however, not a single complete example survived. A large portion of a B5N2 was recovered from the Kuril Islands by a British private collector in 2003. Replicas of the B5N2s were made from U.S. T-6 Texan training aircraft, which were modified to represent Japanese planes for the movie Tora! Tora! Tora!, and have been used in a number of movies and airshows since to depict the planes.

Variants

  • Type K:Prototype.
  • B5N1:First production model.
  • B5N1-K:Improved version.
  • B5N2:Many B5N1s were converted into advanced training aircraft.

Specifications (Nakajima B5N2)

File:Nakajima B5N2 green.jpg
Nakajima B5N2 "Kate".
File:Kate Shokaku crashed.jpg
A crashed Nakajima B5N2 "Kate" (tail marking "EI-306") from Template:Ship. This and a sister aircraft were ditched on a reef near Rennell Island during the Battle of the Coral Sea. Survivors burned the cockpits to foil recovery.

Template:Aircraft specification

See also

File:Pearl Harbor- Nakajima B5N2 over Hickam- 80G178985.jpg
Nakajima B5N2 Model 12 "Kate" over Hickam field, December 7, 1941.

Related development

Comparable aircraft

Related lists

References

Notes

  1. Parshall and Tully 2007, p.80.
  2. Francillion 1970, pp.412-413.

Bibliography

  • Bridgwater, H.C. and Scott, Peter. Combat Colours Number 4: Pearl Harbor and Beyond, December 1941 to May 1942. Luton, Bedfordshire, UK: Guideline Publications, 2001. ISBN 0-9539040-6-7.
  • Francillon, René J. Imperial Japanese Navy Bombers of World War Two. Windsor, Berkshire, UK: Hylton Lacy Publishers Ltd., 1969. ISBN 0-85064-022-9.
  • Francillon, René J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1970. ISBN 370 00033 1.
  • Francillon, René J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1979. ISBN 0-370-30251-6.
  • Francillon, René J. Japanese Carrier Air groups 1941-45. London: Osprey Publishing Ltd., 1979. ISBN 0-85045-295-3.
  • Hawkins, Dr. M.F. The Nakajima B5N "Kate" (Aircraft in Profile number 141). Leatherhead, Surrey, UK: Profile Publications Ltd., 1967. Reprinted 1972.
  • Thorpe, Donald W. Japanese Naval Air Force Camouflage and Markings World War II. Fallbrook, California; Aero Publishers Inc., 1977. ISBN 0-8168-6587-6. (pbk.) ISBN 0-8168-6583-3. (hc.)

External links

Template:Japanese Navy Torpedo Bombers

bg:Накаджима B5N

cs:Nakadžima B5N da:Nakajima B5N de:Nakajima B5N fr:Nakajima B5N gl:Nakajima B5N ko:나카지마 97식 함상공격기 it:Nakajima B5N nl:Nakajima B5N ja:九七式艦上攻撃機 pl:Nakajima B5N ru:Nakajima B5N sr:Накаџима Б5Н fi:Nakajima B5N vi:Nakajima B5N tr:Nakajima B5N zh:九七式艦上攻擊機

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Nakajima B5N".
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