World Library  
Flag as Inappropriate
Email this Article

Kawasaki Ki-64

Role Fighter
Manufacturer Kawasaki
First flight December 1943
Status Cancelled 1944
Primary user Imperial Japanese Army
Number built 1

The Kawasaki Ki-64 (Allied code name: Rob) was a one-off prototype of an experimental heavy, single seat, fighter. It had two unusual design features. First; it had two Kawasaki Ha-40 engines in tandem; one in the aircraft nose, the other behind the cockpit, both being connected by a drive shaft. This combination (called the Kawasaki Ha-201) drove two, three-bladed, contra-rotating propellors.[1][2] The second feature was the use of the wing surface as a radiator for the water-cooled engines.[3] The aircraft first flew in December 1943. During the fifth flight, the rear engine caught fire; and while the aircraft made an emergency landing, it was damaged. The aircraft was subsequently abandoned in mid-1944 in favour of more promising projects. The airframe survived the war, and parts of the unique cooling system were sent to Wright Field for examination.[4]

Specifications (Ki-64)

Data from Warplanes of the Second World War, Volume Three: Fighters;[5] WW2 Aircraft Fact Files: Japanese Army Fighters, Part 1;[4] Japanese Aircraft of the Pacific War[6]

General characteristics
  • Crew: 1 (pilot)
  • Length: 11 m (36 ft 1 in)
  • Wingspan: 13.5 m (44 ft 3 in)
  • Height: 4.25 m (13 ft 11 in)
  • Wing area: 28 m2 (300 sq ft)
  • Empty weight: 4,050 kg (8,929 lb)
  • Gross weight: 5,100 kg (11,244 lb)
  • Powerplant: 1 × Kawasaki Ha-201 coupled liquid-cooled V-12 engine, 1,750 kW (2,350 hp)
  • Propellers: 2 × 3-bladed contra-rotating propellers


  • Maximum speed: 690 km/h (429 mph; 373 kn) at 5,000 metres (16,000 ft)
  • Range: 1,000 km (621 mi; 540 nmi)
  • Service ceiling: 12,000 m (39,370 ft)
  • Time to altitude: 5.5 minutes to 5,000 metres (16,000 ft)
  • Wing loading: 182.1 kg/m2 (37.3 lb/sq ft)
  • Power/mass: 2.91 kg/kW (2.17 kg/hp; 4.78 lb/hp)


  • Francillon, Ph.D., René J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1970 (2nd edition 1979). ISBN 0-370-30251-6.
  • Green, William. Warplanes of the Second World War, Volume Three: Fighters. London: Macdonald & Co. (Publishers) Ltd., 1961 (seventh impression 1973). ISBN 0-356-01447-9.
  • Green, William and Swanborough, Gordon. WW2 Aircraft Fact Files: Japanese Army Fighters, Part 1. London: Macdonald and Jane's, 1976. ISBN 0-356-08224-5.
  • Unknown Author(s). Famous Aircraft of the World, no.76: Japanese Army Experimental Fighters (1). Tokyo, Japan: Bunrin-Do Co. Ltd., August 1976.

External links

  • Article about the Kawasaki fighters on (accessed 21-04-2010)
  • Article about the Ki-64 on (accessed 21-04-2010)

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.