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XF-87 Blackhawk
Role Interceptor
Manufacturer Curtiss-Wright
First flight 1 March 1948
Status Cancelled 10 October 1948
Primary user U.S. Air Force
Number built 2
Program cost $11.3 million USD[1]

The Curtiss-Wright XF-87 Blackhawk (previously designated the XP-87) was a prototype American all-weather jet fighter interceptor and the company's last aircraft project.[2] Designed as a replacement for the World War II-era propeller-driven P-61 Black Widow night/interceptor aircraft, the XF-87 lost in government procurement competition to the Northrop F-89 Scorpion. The loss of the contract was fatal to the company; the Curtiss-Wright Corporation closed down its aviation division, selling its assets to North American Aviation.

Design and development

The aircraft started life as a project for an attack aircraft, designated XA-43. When the United States Army Air Forces issued a requirement for a jet-powered all-weather fighter in 1945, the design was reworked for that request. The XP-87 was a large mid-wing aircraft with four engines paired in underwing pods, with a mid-mounted tailplane and tricycle undercarriage. Two crew members (pilot and radio operator) sat side by side under a single canopy. Armament was to be a nose-mounted, powered turret containing four 20 mm (0.79 in) cannon, but this was never fitted to the prototypes.

Operational history

The first flight of the XF-87 Blackhawk was on 1 March 1948. Although the top speed was slower than expected, the aircraft was otherwise acceptable, and the newly formed (in September 1947) United States Air Force placed orders for 57 F-87A fighters and 30 RF-87A reconnaissance aircraft just over a month later. Since the performance problems were due to lack of power, the four Westinghouse XJ34-WE-7 turbojets of the prototypes were to be replaced by two General Electric J47 jets in production models. One of the two XF-87 prototypes was to be converted to the new powerplants for test purposes.

At this point, the USAF decided that the Northrop F-89 Scorpion was a more promising aircraft. The F-87 contract was cancelled on 10 October 1948, and both prototypes were scrapped.


XP-87 following nosewheel collapse

XP-87 on ramp with C-47s and B-17s in background

First flight was March 1, 1948
Redesignated XP-87
Production fighter version (canceled)
Reconnaissance variant (canceled)

Specifications (XF-87)

Data from Curtiss Aircraft 1907–1947[3]

General characteristics

  • Crew: two - pilot, radio operator
  • Length: 62 ft 10 in (19.15 m)
  • Wingspan: 60 ft 0 in (18.28 m)
  • Height: 20 ft 0 in (6.09 m)
  • Wing area: 600 ft² (55.74 m²)
  • Empty weight: 25,930 lb (11,786 kg)
  • Max. takeoff weight: 49,900 lb (22,682 kg)
  • Powerplant: 4 × Westinghouse XJ34-WE-7 turbojets, 3,000 lbf (13.4 kN) each


  • Maximum speed: 600 mph (521 knots, 966 km/h)
  • Range: 1,000 mi (870 nmi, 1,610 km)
  • Service ceiling: 41,000 ft (12,500 m)
  • Climb to 35,000 ft (10,700 m): 13.8 min


  • Guns: 4 × 20 mm cannon in nose

See also


  1. Knaack 1978, p. 315.
  2. Winchester 2005, pp. 72–73.
  3. Bowers 1979, p. 510.
  • Bowers, Peter M. Curtiss Aircraft 1907–1947. London: Putnam, 1979. ISBN 0-370-10029-8.
  • Buttler, Tony. American Secret Projects: Fighters & Interceptors 1945–1978. Hinckley, UK: Midland Publishing, 2008, First edition, 2007. ISBN 978-1-85780-264-1.
  • Jenkins, Dennis R. and Tony R. Landis. Experimental & Prototype U.S. Air Force Jet Fighters. North Branch, Minnesota, USA: Specialty Press, 2008. ISBN 978-1-58007-111-6.
  • Knaack, Marcelle Size. Encyclopedia of US Air Force Aircraft and Missile Systems: Volume 1 Post-World War II Fighters 1945-1973. Washington, DC: Office of Air Force History, 1978. ISBN 0-912799-59-5.
  • Pace, Steve. X-Fighters: USAF Experimental and Prototype Fighters, XP-59 to YF-23. St. Paul, Minnesota, USA: Motorbooks International, 1991. ISBN 0-87938-540-5.
  • Winchester, Jim. Concept Aircraft: Prototypes, X-Planes and Experimental Aircraft. Rochester, Kent, UK: Grange books plc, 2005. ISBN 1-84013-809-2.

External links

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