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U.S.
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Japanese  
Japanese Engines:
Sakae 21
 

Nakajima Sakae 21
General Characteristics
(Sakae 21)
Type:
14-cylinder air-cooled
two-row radial engine

Bore: 5.1 in
Stroke: 5.9 in
Displacement: 1,703 in³
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Performance
Power output:
1,130 hp

Source: Wikipedia.com

 

Aircraft installations:
Mitsubishi A6M Zero


Nakajima Sakae 21
The Nakajima Sakae 21 was a two-row, 14-cylinder air-cooled radial engine used in Japanese aircraft during World War II.

"Sakae" was the navy designation; the army called the first of the series the Ha-25 and later versions were designated Ha105, Ha115. Navy designations were Sakae 10, 20 and 30 series. A total of 21,166 were made by Nakajima; 9,067 were manufactured by other firms.

Engine Components

Cooling system: Air-cooled.

Source: Wikipedia.com