Mitsubishi Kasei
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The Script error: No such module "Nihongo". was a two-row, 14-cylinder air-cooled radial engine built by Mitsubishi Heavy Industries and used in a variety of World War II Japanese aircraft, such as Mitsubishi J2M and Mitsubishi G4M.[1] The Mitsubishi model designation for this engine was A10 while it was an experimental project, in service it was known as the MK4, and known as the Ha101 & Ha111 by the Army and Kasei by the Navy. According to unified designation code it was Ha-32 of the variants from 11 to 27.
Design and development
Although originally ordered by the Imperial Japanese Navy, the Kasei was based on the earlier Mitsubishi Shinten engine, itself based originally on the Mitsubishi Kinsei. Produced in a wide variety of models, the Kasei began with a rated power of Script error: No such module "convert"., with a gradual evolution to Script error: No such module "convert". in later wartime versions. Three variants were developed for the Japanese Navy starting in 1939. It was also later adopted by the Imperial Japanese Army as the Ha-101 engine. Unified code was Ha-32.
Physically, the engine had a rather large Script error: No such module "convert". diameter compared to the Script error: No such module "convert". of the Nakajima Homare engine. Its size and weight meant it was a challenging engine to use on single engine fighters.Script error: No such module "Unsubst".
Variants
- MK4A [Ha-32] 11
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- MK4B [Ha-32] 12 - same as MK4A 11
- MK4C [Ha-32] 13 - with extended propeller shaft
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- MK4D [Ha-32] 14 - with contra-rotating shafts
- MK4E [Ha-32] 15 - with improved altitude performance
- MK4P [Ha-32] 21
- Script error: No such module "convert"., 2600 rpm at takeoff
Script error: No such module "convert"., 2500 rpm at Script error: No such module "convert".
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- MK4Q [Ha-32] 22 - same as MK4A 21
- MK4R [Ha-32] 23 - Water-injection
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- MK4R-C [Ha-32] 23c - Script error: No such module "convert". - Fitted with a turbo charger that allowed an output of Script error: No such module "convert". to be maintained up to Script error: No such module "convert". instead of only Script error: No such module "convert".
- MK4S [Ha-32] 24 - Same power as the MK4P 21 with contra-rotating shafts
- MK4T [Ha-32] 25 - Script error: No such module "convert".,Script error: No such module "convert".
- MK4R [Ha-32] 26
- Script error: No such module "convert"., 2600 rpm at takeoff
Script error: No such module "convert"., 2500 rpm at Script error: No such module "convert".
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- MK4U-4 [Ha-32] 26a - Mechanically driven 2-speed supercharger
- Script error: No such module "convert".,[2] 2600 rpm at takeoff
- Script error: No such module "convert"., 2500 rpm rated at 2500m
- Script error: No such module "convert"., 2500 rpm rated at 6800m
- MK4V [Ha-32] 27
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Applications
- Kawanishi E15K
- Kawanishi H8K
- Kawanishi N1K
- Mitsubishi G4M
- Mitsubishi J2M
- Mitsubishi Ki-21
- Nakajima B6N
- Nakajima G5N
- Yokosuka P1Y
Specifications (MK4V 27)
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General characteristics
- Type: 14-cylinder, two-row, radial piston engine
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- Displacement: 42 L (2,567 cu in)
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Components
- Valvetrain: Pushrod operated overhead-valve system with 2 valves per cylinder
- Supercharger: Centrifugal, two-speed single stage
- Cooling system: Air-cooled
- Reduction gear: Double planetary spur reduction gear, Ratio: 0.538:1
Performance
- Power output:
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- Script error: No such module "convert". at Script error: No such module "convert"., Rated high blower with water injection)
- Specific power: 0.72 hp/in³ (32.9 Kw/L)
- Compression ratio: 6.5:1
- Power-to-weight ratio: 1.08 hp/lb (1.77 kW/kg)
See also
Comparable engines
Related lists
References
Notes
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Bibliography
- Matsuoka Hisamitsu, Nakanishi Masayoshi. The History of Mitsubishi Aero Engines 1915–1945. Miki Press, Japan, 2005. Template:ISBN
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- Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. Template:ISBN
- Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989. Template:ISBN
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Template:Mitsubishi aeroengines Template:Japanese Imperial Army aeroengines Template:Imperial Japanese Navy aero engines
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