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The Nakajima Ki-84 Hayate was a single-seat fighter that was used by Japan during World War II. It had a Nakajima Ha-45 engine that was capable of propelling it at speeds of up to 687 km/h. The Ki-84's armament consisted of two 20 mm autocannons and two 12.7 mm MGs. Up to two 250 kg bombs could be added if necessary.

The total weight of the Ki-84 system was about 2,660 kg while its total length was 9.92 meters. The service ceiling of the Ki-84 was approximately 10,000 meters while the maximum range of the Hayate was 2,100 kilometers.[1]

History

Design work on the Ki-84 began in 1942 with the intention of creating a replacement for the Ki-43. Its prototype first flew in early 1943, and production began in April 1944, a month after pre-production aircraft entered service with the 22nd Sentai.[2] Hayates were used in many of the final battles of the Pacific Theater, including over the Philippines and the Japanese home islands. 3,514 were built before Japan surrendered. 

Variants

  • Ki-84-Ia: Most common version; armed with 2 machine guns and 2 autocannons in wings.
  • Ki-84-Ib: Version with four autocannons, built in very limited numbers.
  • Ki-84-Ic: Bomber destroyer version armed with 4 autocannons.
  • Ki-84-II: Built with a wooden rear fuselage.
  • Ki-106: All wood version.
  • Ki-113: Had a stronger airframe built from steel.
  • Ki-116: Used a lighter Ha-32 engine.
  • Ki-117: Interceptor version.

References

  1. http://www.aviastar.org/air/japan/nakajima_ki-84.php
  2. http://wwiivehicles.com/japan/aircraft/fighter/nakajima-ki-84-hayate-frank.asp


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