Hiro Type 91

This article is about the engine. For the Hiro Type 91 flying boat, see Hiro H4H.
Type 91
Type W-12 water-cooled piston engine
National origin Japan
Manufacturer Hiro Naval Arsenal
Developed from 12Eb

The Hiro Type 91, (full designation Hiro Type 91 520 hp water-cooled W-12), was a 12-cylinder, water-cooled, W engine developed for aircraft use by the Imperial Japanese Navy in the mid-1930s. Power was in the 450 kW (600 hp) range. Its design was inspired by the Lorraine-Dietrich 12Eb Courlis. An enlarged more powerful engine, the Hiro Type 90 had also been developed, producing 600 hp.

Applications

Specifications (Type 91 500hp-1)

General characteristics

Components

Performance

See also


Related lists

References

Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 74. 

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