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Nakajima Sakae

1940s Japanese piston aircraft engine

Field	Value
name	Sakae
image	File:栄一二型 Flying Heritage Collection (cropped).jpg
caption	Nakajima Sakae engine on display at the Flying Heritage & Combat Armor Museum
engine_type	Piston aircraft engine
manufacturer	Nakajima
first_run	1939
major_applications	Mitsubishi A6M
Nakajima Ki-43
Kawasaki Ki-48
number_built	30,233
developed_from	Nakajima Ha5
developed_into	Nakajima Homare

Nakajima Ki-43 Kawasaki Ki-48

The Nakajima Sakae was a two-row, 14-cylinder air-cooled radial engine used in a number of combat aircraft of the Imperial Japanese Navy and Imperial Japanese Army before and during World War II.

Design and development

The engine was designed by Nakajima Aircraft Company with code name NAM, as a scaled-down and advanced version of the previous NAL design (Army Type 97 850 hp radial engine, Nakajima Ha5).{{cite book

A total of 21,166 were made by Nakajima; 9,067 were manufactured by other firms.

Variants

;Army Type 99 975 hp Air-cooled Radial :Long Army designation for the Nakajima NK1 radial engine named Sakae. ;Nakajima Ha25 (Hatsudoki designation) :Short Army designation for the initial production version of the Nakajima NK1 radial engine named Sakae. ;Nakajima Ha105 (Hatsudoki designation): ;Nakajima Ha115 (Hatsudoki designation) :Nakajima Ha115-I :Nakajima Ha115-II ;Nakajima Ha-35 (unified designation) :Nakajima Ha-35 Model 11 :Nakajima Ha-35 Model 12 :Nakajima Ha-35 Model 23 - 1,150 hp (858 kW)

;Nakajima NK1 (Navy designation) :NK1C Sakae 12 - 925 hp (690 kW), 940 hp (701 kW), 975 hp (727 kW) :NK1D Sakae 11 - 970 hp (723 kW), 985 hp (735 kW) :NK1F Sakae 21 - 1130 PS :NK1E Sakae 31 - 1,130 hp (843 kW), boosted to 1,210 hp (902 kW) with water-methanol injection

Applications

Kawasaki Ki-45 (prototype)
Kawasaki Ki-48
Kawasaki Ki-56
Mitsubishi A6M
Mitsubishi C5M2
Nakajima B5N2
Nakajima J1N
Nakajima Ki-43
Nakajima Ki-115
Tachikawa Ki-77

Surviving engines

A small number of original Sakae powerplants are on display in aviation museums, usually mounted into the airframes of restored Mitsubishi A6M Zeros. Only one airworthy Zero worldwide still flies with a restored Sakae powerplant, the Planes of Fame Museum's A6M5 example, bearing tail number "61-120".

Specifications (Sakae 21)

| |power/weight=1.428 kW/kg (0.869 hp/lb)

References

Notes

Bibliography

{{Cite book
Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989.
Peattie, Mark R., Sunburst: The Rise of Japanese Naval Air Power 1909–1941, Annapolis, Maryland: Naval Institute Press, 2001,

References

Seaman, Richard. [http://www.richard-seaman.com/Aircraft/AirShows/Chino2004/Sampler/index.html "Aircraft air shows."] ''richard-seaman.com.'' Retrieved: 13 October 2010.
"Flight Demo of Genuine Japanese Zero with ORIGINAL WWII Sakae 31 Engine!".

Info: Wikipedia Source

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aircraft-air-cooled-radial-piston-engines 1930s-aircraft-piston-engines nakajima-aircraft-engines

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