Mitsubishi Kasei

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 , with a gradual evolution to 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 diameter compared to the of the Nakajima Homare engine. Its size and weight meant it was a challenging engine to use on single engine fighters. ==Variants==

• MK4A [Ha-32] 11 :, 2450 rpm at takeoff , 2350 rpm at , 2350 rpm at • MK4B [Ha-32] 12 - same as MK4A 11 • MK4C [Ha-32] 13 - with extended propeller shaft :, 2450 rpm at takeoff , 2350 rpm at , 2350 rpm at • MK4D [Ha-32] 14 - with contra-rotating shafts • MK4E [Ha-32] 15 - with improved altitude performance • MK4P [Ha-32] 21 :, 2600 rpm at takeoff , 2500 rpm at , 2500 rpm at • MK4Q [Ha-32] 22 - same as MK4A 21 • MK4R [Ha-32] 23 - Water-injection :, 2600 rpm at takeoff , 2500 rpm at , 2500 rpm at • MK4R-C [Ha-32] 23c - - Fitted with a turbo charger that allowed an output of to be maintained up to instead of only • MK4S [Ha-32] 24 - Same power as the MK4P 21 with contra-rotating shafts • MK4T [Ha-32] 25 - , • MK4R [Ha-32] 26 :, 2600 rpm at takeoff , 2500 rpm at , 2500 rpm at • MK4U-4 [Ha-32] 26a - Mechanically driven 2-speed supercharger :, 2600 rpm at takeoff :, 2500 rpm rated at 2500m :, 2500 rpm rated at 6800m • MK4V [Ha-32] 27 : ==Applications==

• Kawanishi E15K • Kawanishi H8K • Kawanishi N1K • Mitsubishi G4M • Mitsubishi J2M • Mitsubishi Ki-21 • Nakajima B6N • Nakajima G5N • Yokosuka P1Y ==Specifications (MK4V 27)==