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Kasei Aircraft Engine


Kasei 12

Photograph of Japanese Kasei 12 aircraft engine
U.S. Navy. Via Francillon (1979).

Kasei 14

Photograph of Japanese Kasei 14 aircraft engine
U.S. Navy. Via Francillon (1979).

Kasei 25

Photograph of Japanese Kasei 25 aircraft engine

U.S. Navy. Via Francillon (1979).



The Mitsubishi Kasei ("Mars") was an air-cooled fourteen-cylinder double row radial engine with a 150mm bore and 170mm stroke. It was based on a Pratt & Whitney design and was the largest 14-cylinder engine produced by Mitsubishi when war broke out. 

Model
Horsepower
Wattage
Notes
11
1,530 hp (takeoff)
1,410 hp (6560 feet)
1,340 hp (13,125 feet)
1141 kW (takeoff)
1051 kW (2000m)
999 kW (4000m)
Also known as the MK4A and the [Ha-32] 11.
12

679 kW
Also known as the MK4B and the [Ha-32] 12.
14

802 kW (takeoff)
Also known as the MK4D and the [Ha-32] 14.
21
1800 hp
1342 kW
Water-methanol injection
22
1,850 hp (takeoff)
1,680 hp (6900 feet)
1,540 hp (18,000 feet)
1380 kW (takeoff)
1253 kW (2100m)
1148 kW (5500m)
Also known as the MK4Q and the [Ha-32] 22.
23a
1,800 hp (takeoff)
1,575 hp (5900 feet)
1,410 hp (15,700 feet)
1342 kW (takeoff)
1174 kW (1800m)
1051 kW (4800m)
Also known as the MK4R-A and the [Ha-32] 23a.
25
1820 hp (takeoff)
1680 hp (6900 feet)
1540 hp (18,000 feet)
1357 kW (takeoff)
1250 kW (2100m)
1148 kW (5500m)
Also known as the MK4T and the [Ha-32] 25.
26a
1820 hp
1357 kW
Also known as the MK4U-A and the [Ha-32] 26a.

This engine was used on the B6N "Jill", the G4M "Betty", the H8K "Emily", J2M "Jack", and P1Y2 "Frances".

References

Francillon (1979)
Peattie (2001)



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