Fokker XB-8

The Fokker XB-8 was a bomber built for the United States Army Air Corps in the 1920s, derived from the high-speed Fokker O-27 observation aircraft.

XB-8
Atlantic XB-8 prototype
Role Bomber
Manufacturer General Aviation Corporation.[1]
Designer Fokker
Primary user United States Army Air Corps
Number built 7 (1 XB-8 + 2 YB-8 + 4 Y1B-8), all as Y1O-27

Design and development

During assembly, the second prototype XO-27 was converted to a bomber prototype, dubbed the XB-8. While the XB-8 was much faster than existing biplane bombers, it did not have the bomb capacity to be considered for production. Two YB-8s and 4 Y1B-8s were ordered, but these were changed mid-production to Y1O-27 configuration.

The wing of the XB-8 and XO-27 was built entirely from wood, although the fuselage was constructed of steel tubes covered with fabric with the exception of the nose which had a corrugated metal.[1] They featured the first retractable landing gear ever fitted to an Army Air Corps bomber or observation craft. The undercarriage retracted electrically. Crew was three in tandem position.[1]

Operational history

It competed against a design submitted by Douglas Aircraft Company, the Y1B-7/XO-36. Both promised to greatly exceed the performance of the large biplane bombers then used by the Army Air Corps. However, the Douglas XB-7 was markedly better in performance than the XB-8, and no further versions of Fokker's aircraft were built.

Operators
 United States

Specifications (XB-8)

Data from Fokker's Twilight[2]

General characteristics

  • Crew: 4
  • Length: 47 ft 4 in (14.42 m)
  • Wingspan: 64 ft 4 in (19.60 m)
  • Height: 11 ft 6 in (3.50 m)
  • Wing area: 619 sq ft (57.5 m2)
  • Empty weight: 6,861 lb (3,112 kg)
  • Gross weight: 10,650 lb (4,824 kg)
  • Powerplant: 2 × Curtiss V-1570-23 "Conqueror" V12 engines, 600 hp (450 kW) each

Performance

  • Maximum speed: 160 mph (260 km/h, 140 kn)
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See also

Aircraft of comparable role, configuration and era

Related lists

References

Notes
  1. Cellier, Alfred (23 August 1934), "American Military Monoplanes", Flight, p. 864
  2. Pelletier 2005, p. 64.

Bibliography
  • Pelletier, Alain J. "Fokker Twilight". Air Enthusiast, No. 117, May/June 2005, pp. 62–66. ISSN 0143-5450.
  • Wagner, Ray. American Combat Planes. New York: Doubleday, 1982. ISBN 0-930083-17-2.
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