Nakajima Ki-84-I Hayate
| GENERAL DATA | |||
| Other Designation(s) | Hayate
= Gale, Army Type 4 Fighter, Frank (Allied reporting name) |
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| Type | Fighter |
Crew | 1 |
| Manufacturer(s) | Nakajima Aircraft
Company |
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| Production | 3514 |
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| Prototype first flight | March 1943 |
Introduction | November 1944 |
| Variants | |||
| Ki-84-a | Prototype | ||
| Ki-84-b | Evaluation model. | ||
| Ki-84-c | Pre-production model. | ||
| Ki-84-I Ko | Armed with 2 × 12.7 mm Ho-103 machine guns and 2 × 20mm Ho-5 cannons in wings (most widely produced version). | ||
| Ki-84-I Otsu | Armed with 4 × 20 mm Ho-5 cannons. (Limited production run, may not have equipped a full Sentai) | ||
| Ki-84-I Hei | Armed with 2 × 20 mm Ho-5 cannons and 2 × 30 mm Ho-155 cannons in wings. | ||
| Ki-84-I Tei | Night fighter variant of Ki-84 Otsu. Equipped with an additional Ho-5 20mm cannon (300 shells) placed at 45 degree angle behind the cockpit in Schräge Musik configuration. Rare variant, 2 built. | ||
| Ki-84-I Ko - Manshu Type | Manufactured in Manchukuo for Manshukoku Hikoki Seizo KK by Nakajima License. | ||
| Ki-84-II | Sometimes known as the 'Hayate-Kai', the Ki-84-II had certain duralumin components replaced with ones made of wood and plywood, mainly concerning the rear fuselage, tail unit elements, wing tips, push-pull rods and other, minor components. This model was produced with the designations Ko, Otsu and Hei depending on the armament. | ||
| Ki-84-N | 1st high-altitude interceptor variant of the Ki-84, with a 2500 hp Nakajima Ha-219 air cooled radial engine and with wing area increased to 249.19 square feet. The Ki-84-N production model was assigned to the Kitai 'Ki-117'. Neither aircraft left the design stage before the war's end. | ||
| Ki-84-P | 2nd high-altitude interceptor variant of the Ki-84, with a 2500 hp Nakajima Ha-219 air cooled radial engine and with wing area increased to 263.4 square feet. Cancelled in favor of further development of the Ki-84-R, which was proving to be a less ambitious project. | ||
| Ki-84-R | 3rd high-altitude interceptor variant of the Ki-84, with a 2000 hp Nakajima Ha-45-44 with a mechanically-driven two-stage three-speed supercharger. The prototype was 80% completed at war's end. | ||
| Ki-106 | Prototype, constructed entirely out of wood. 3 Built. | ||
| Ki-113 | Based on the Ki-84 Otsu, with certain steel components on different areas of the aircraft. The project was an attempt to sustain light alloys, which were becoming very scarce later in the war. It employed steel sheet skinning and the cockpit section, ribs, and bulkheads were made of carbon steel. | ||
| Ki-116 | Evaluation model, equipped with a Mitsubishi Ha-112-II (Ha-33-62), 1500 hp. 1 Built. | ||
| Ki-117 | Production designation of the Ki-84N. | ||
| DIMENSIONS | |||
| Length | 9.92 m |
Empty Weight | 2660 kg |
| Wingspan | 11.238 m |
Loaded Weight | 3601.5 kg |
| Height | 3.385 m |
Maximum Takeoff Weight | 4170 kg |
| Wing area | 21 m² |
Wing loading | 171.47 kg/m² |
| ARMAMENT (Ki-43-Ia Ko) | ||||
| Main Gun | Wings | 2× 20 mm Ho-5 cannon |
Ammunition Carried | 2 x 150 |
| Secondary Guns | Nose | 2× 12.7 mm Ho-103 MG |
2 x 350 |
|
| Bombs | 2× 100 kg bombs or 2×
250 kg bombs |
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| ARMAMENT (Ki-43-I Otsu) | ||||
| Main Gun | Wings | 2 × 20 mm Ho-5 cannon |
Ammunition Carried | 2 x 150 |
| Nose | 2 × 20 mm Ho-5 cannon |
2 x 150 |
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| Bombs | 2× 100 kg bombs or 2×
250 kg bombs |
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| ARMAMENT (Ki-43-I Hei) | ||||
| Main Gun | Wings | 2 × 30 mm Ho-155 cannon |
Ammunition Carried | 2 x 150 |
| Secondary Guns | Nose | 2× 20 mm Ho-5 cannon |
2 x 150 |
|
| Bombs | 2× 100 kg bombs or 2×
250 kg bombs |
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| ARMAMENT (Ki-43-I Tei) | ||||
| Main Gun | Wings | 2 × 20 mm Ho-5 cannon |
Ammunition Carried | 2 x 150 |
| Nose | 2 × 20 mm Ho-5 cannon |
2 x 150 |
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| Fuselage * | 1 × 20 mm Ho-5 cannon |
300 |
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| Bombs | 2× 100 kg bombs or 2×
250 kg bombs |
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(*) placed at 45 degree angle behind the cockpit
| POWERPLANT | |||
| Engine | 1 ×
Nakajima Ha-45-23 Homare Models 11,12,21 or 23 |
Type & Displacement | 18-cylinder air-cooled
radial, 35.8 L |
| Horsepower (maximum) | 2041
hp |
Power/Weight Ratio | 566.71 hp / ton * |
| Fuel Capacity | 737 L (internal),
2× 200 L drop tanks (external)
|
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(*) with Loaded Weight
| PERFORMANCES | |||
| Maximum Speed | 682 km/h
at 7000 m |
Cruise Speed | ? km/h |
| Stall Speed * | ? km/h |
Service Ceiling | 11826 m |
| Rate of Climb | 21.84 m/s at sea level 18.29 m/s at 3050 m |
Range | 842 km, 1 685 km |
(*) vitesse de décrochage
| Sources | |||
| Wikipédia | www.airpages.ru | ||
Drawings |
