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Nakajima Ki-84 Hayate 
The Nakajima Ki-84 Hayate (Gale) was flown in prototype form in April 1943. The Ki-84 met with immediate approval by Japanese army air force pilots, but was subjected to lengthy service trials which undoubtedly delayed its introduction to combat operations. Production of the Ki-84-1a got under way at Nakajima's Ota plant in April 1944, pre-production aircraft having equipped the 22nd Sentai in China the previous month. Immediately afterwards 10 sentais of the Ki-84-I, codenamed 'Frank' by the Allies, were deployed in the Philippines to confront the advancing American forces. As a dive bomber it was capable of carrying two underwing bombs of up to 550 lb.
In an effort to accelerate production of the new fighter, Nakajima opened up a new line at its Otsonomiya plant. The Ki-84 \-1b and -1c differed in armament fitted. As Boeing B-29 raids began to take their toll of Japanese cities a new 'bomber destroyer', the Ki-84-Ic, was produced with an armament of two nose mounted 20mm cannon and two wing mounted 30mm cannon.
In the last 17 months of war 3,513 aircraft were completed, this despite the B-29 raids and the fact that, owing to such damage at Musashi, Nakajima's engine plant had to be transferred elsewhere. The total included a batch of 100 completed by the Manchurian Aircraft Manufacturing Co. Ki.84-Ia
Engine: Nakajima Ha.45/11 Type 4, 1900 hp
Wingspan: 36 ft 10.25 in
Length: 32 ft 6.5 in
Height: 11 ft 1.25 in
Empty weight: 5864 lb
Loaded weight: 7965 lb
Max speed: 388 mph at 19,680 ft
Service ceiling: 34,450 ft
Max range: 1815 mi
Armament: 2 x 20 mm Type 5 cannon, 2 x 12.7mm Type 103 mg
Bombload: 1100 lb
Crew: 1
 Nakajima Ki-84 Hayate / Frank
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