World Library  
Flag as Inappropriate
Email this Article

Nakajima Ki-8

Article Id: WHEBN0014917699
Reproduction Date:

Title: Nakajima Ki-8  
Author: World Heritage Encyclopedia
Language: English
Subject: Japanese military aircraft designation systems, List of fighter aircraft, 1934 in aviation, Nakajima Aircraft Company, List of aircraft (N), Nakajima Kotobuki
Publisher: World Heritage Encyclopedia

Nakajima Ki-8

Nakajima Ki-8
Role prototype fighter aircraft
Manufacturer Nakajima Aircraft Company
First flight 1934
Primary user IJA Air Force
Number built 5

The Nakajima Ki-8 (キ8 Ki-hachi?) was an unsuccessful attempt by Nakajima Aircraft Company to interest the Imperial Japanese Army Air Force in a two-seat modern monoplane fighter.[1]

Design & Development

Development of the Ki-8, (aka Nakajima DF), began in 1933, based on an all-metal two-seat aircraft, featuring low inverted gull wings, with fixed and spatted landing gear, powered by a single 410 kW (550 hp) Nakajima Kotobuki Ha-1-3 radial engine. Proposed armament consisted of twin 7.7 mm (.303 in) machine guns firing from between the engine cylinders and a third 7.7 mm (.303 in) machine gun on a flexible mount on the back of the cockpit.

In initial testing, the aircraft proved unpopular with test pilots, who raised concerns about the design's aerodynamic stability . The initial prototypes were also plagued with a variety of manufacturing defects and malfunctions. Though corrections were made to improve initial design and stability problems, the performance of the aircraft was considered no better than the existing Nakajima Type 91 fighter, and as the Japanese Army Air Force had no use for two-seat fighters,[2] the project was cancelled in 1934, after prototype five aircraft had been produced, and before the start of full production.


  • Nakajima Ki-8 : initial prototype (5 built)


  • Imperial Japanese Army Air Force

Specifications (Ki-8)

Data from Famous Airplanes of the World, first series, #76: Army Experimental Fighters (1)[3]

General characteristics
  • Crew: 2
  • Length: 8.17 m (26 ft 9.6 in)
  • Wingspan: 12.88 m (42 ft 3.1 in)
  • Height: 3.57 m (11 ft 8.5 in)
  • Wing area: 28.5 m2 (306.78 ft2)
  • Empty weight: 1,525 kg (3,362 lb)
  • Gross weight: 2,111 kg (4,654 lb)
  • Powerplant: 1 × Nakajima Ha-1 Kotobuki air-cooled radial engine, 410 kW (550 hp) each


  • Maximum speed: 328 km/h (204 mph)
  • Range: 1,000 km (621 miles)
  • Service ceiling: 8760 m (28,740 ft)
  • 2× 7.7 mm (.303 in) forward-firing machine guns
  • 1× 7.7 mm (.303 in) dorsal flexible machine gun
  • References

    • Unknown author. Famous Airplanes of the World, first series, #76: Army Experimental Fighters (1). Tokyo: Bunrin-Do, August 1976.
    • Unknown author. Famous Airplanes of the World, second series, #24: Army Experimental Fighters. Tokyo: Bunrin-Do, September 1990.

    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.