Folland Fo.108

Last updated

Fo.108
RoleEngine testbed
Manufacturer Folland Aircraft
First flight1940
Introduction1940
Number built12

The Folland Fo.108, also known as the Folland 43/37 and by the nickname Folland Frightful [1] (or Frightener), was a large monoplane engine testbed aircraft of the 1940s.

Contents

Design and development

The Fo.108 was Folland's response to Air Ministry Specification 43/37 for a single-engined engine testbed, with accommodation for a pilot and two observers. In 1938, the Air Ministry selected the F.108 ahead of designs from Percival Aircraft (the P.26/P.26A) and General Aircraft (the GAL.43), with an order for twelve F.108s being placed. [2] It was Folland's first design to be accepted by the Air Ministry for production. The Fo.108 was a large low-wing cantilever monoplane with a conventional cantilever tailplane and a fixed tailwheel landing gear. It had a glazed cockpit for the pilot, and a cabin for two observers behind and below the pilot, fitted out so that they could make detailed measurements of engine performance during flight.

To enable the aircraft to be delivered from the Hamble factory and later ferried to new assignments, they were normally fitted with a Bristol Hercules radial engine. In service, the Fo.108 was fitted with a number of other engines including the inline Napier Sabre (four), [3] Bristol Centaurus radial, and Rolls-Royce Griffon V-engine.

Entering service in 1940, [4] the type was operated by the Bristol Aeroplane Company, Napier and Rolls-Royce, [5] Five of the twelve production aircraft were lost in crashes, the type earning the nickname "Frightener" as a result. [4] The last examples of the Fo.108 were withdrawn from service in 1946, by de Havilland's engine division. [5] [6]

Specifications (Centaurus engine)

Data from Jane's Fighting aircraft of World War II [7]

General characteristics

Performance

See also

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References

Notes

  1. Buttler (2004) British Secret Projects - Fighters and Bombers 1935-1950 Midland Publishing 1-85780-179-2 p228
  2. Jarrett Aeroplane Monthly June 1991, p. 354
  3. "Aero Engines - Napier" Flight, 27 June 1958 p898
  4. 1 2 Willis, David (January 2009). "Folland's 'Frightener'". FlyPast . Stamford, Lincolnshire, England: Key Publishing (330): 60. ISSN   0262-6950.
  5. 1 2 Halley 1996, p. 12.
  6. "Flying Test Bed", Flight: 591, 13 June 1946
  7. Bridgman, Leonard, ed. (1989). Jane's Fighting aircraft of World War II (1995 ed.). New York: Military Press. p. 121. ISBN   0517679647.
  8. 1 2 3 Jarrett Aeroplane Monthly June 1991, p. 357

Bibliography