Japanese Engine Research, Page 4

 

Nakajima Homare 21 (NK9H) Army Type 4 1,850hp Radial (Ha 45)
Unified Type Ha45-12
18 Cylinder Radial on Kawanishi N1K2-Ja Shiden Kai George

Take off HP - 2,000 (Metric)
Low blower rated HP - 1,900 (Metric) @ 1,800 meters
High Blower rated HP - 1,700 (Metric) @ 6,400 meters
Boost TO +500 and +300 rated
3,000 RPM at TO and rated power
Two speed supercharger, water methanol injection
Diameter - 1.180 meter
Dry weight  - 820 kg

The Homare needs little introduction. This engine and the Nakajima Sakae are two of Japans most recognized engines.

 

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