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Nakajima Ha-1 Kotobuki

The Nakajima Ha-1 Kotobuki (Longevity) was an aircraft engine developed by theNakajima Aircraft Company. It was a radial piston developed under licence from the Bristol Jupiter.

Specifications
- Type: 9-cylinder air-cooled radial piston engine
- Bore: 146 mm (5.75 in)
- Stroke: 160 mm (6.3 in)
- Displacement: 24.1 L (1,471.2 cu in)
- Dry weight: 350 kg (772 lb)

Variants
- 2-Kai-1 - 585 hp (436 kW)
- 2-Kai-3 - 610 hp (455 kW)
- 3-Kai - 710 hp (529 kW)

Applications

- Mitsubishi A5M
- Mitsubishi Ki-18
- Nakajima A1N2
- Nakajima A2N
- Nakajima Ki-8
- Nakajima Ki-27
- Nakajima E4N
- Nakajima E8N
- Nakajima Ki-34
- Nakajima Type 91

Source:
Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.
Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989. ISBN 0-517-67964-7

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