Armstrong Whitworth Armadillo

The Armstrong Whitworth Armadillo was a British single-seat biplane fighter aircraft built by Armstrong Whitworth.

Armadillo
Role Fighter
National origin British
Manufacturer Armstrong Whitworth Aircraft
Designer F. Murphy
First flight 1918
Status Prototype
Number built 1

Development and design

The Armadillo was designed in 1917 by Armstrong Whitworth's new chief designer, Fred Murphy, as a private venture single-seat fighter powered by a Bentley BR2 rotary engine. While the design met the requirements of Air Board Specification A1(a) for a replacement for the Sopwith Camel, it was principally produced to test the abilities of Armstrong Whitworth's new design team, and was not considered a serious competitor for the requirement.[1] Despite this, Armstrong Whitworth was granted a licence in January 1918 to allow construction of two prototypes.[2]

The aircraft was a two-bay biplane with a square section fuselage. The engine in the nose was enclosed by a circular cowl with a deep hump above the cowl housing two .303 in (7.7 mm) Vickers machine guns that fired through the propeller arc using synchronisation gear.[2][3]

The first prototype made its maiden flight during April 1918.[4] The type was not subject to formal evaluation by the Air Ministry, with the poor view from the cockpit being criticised.[5] By the time the Armadillo appeared the Sopwith Snipe, powered by the same engine and faster was already in large scale production and Murphy had started work on the more advanced Ara fighter, so the Armadillo was abandoned, the second prototype not being completed.[6][7]

Specifications

Data from War Planes of the First World War:Volume One: Fighters [6]

General characteristics

  • Crew: 1
  • Length: 18 ft 10 in (5.74 m)
  • Wingspan: 27 ft 9 in (8.46 m)
  • Height: 7 ft 10 in (2.39 m)
  • Wing area: 232 sq ft (21.6 m2)
  • Empty weight: 1,250 lb (567 kg)
  • Gross weight: 1,860 lb (844 kg)
  • Fuel capacity: 40 imp gal (48 US gal; 180 L)[8]
  • Powerplant: 1 × Bentley BR2 nine-cylinder rotary engine, 230 hp (170 kW)

Performance

  • Maximum speed: 125 mph (201 km/h, 109 kn) at ground level
  • Endurance: 2 hr 45 min
  • Service ceiling: 24,000 ft (7,300 m)
  • Time to altitude: 6 min 30s to 10,000 ft (3,000 m)

Armament

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See also

Aircraft of comparable role, configuration and era

Notes

    References
    1. Tapper 1988, p. 79.
    2. Mason 1992, p.138-139.
    3. Taylor 2001, p. 47
    4. Tapper 1988, p. 82.
    5. Tapper 1988, pp. 82–83.
    6. Bruce 1965, p.19.
    7. Tapper 1988, p. 83.
    8. Bruce 1957, p. 28.
    • Bruce, J.M. (1957). British Aeroplanes 1914–18. London: Putnam.
    • Bruce, J.M. (1965). War Planes of the First World War:Volume One: Fighters. London: Macdonald.
    • Mason, Francis K. (1992). British Fighters since 1912. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-082-7.
    • Tapper, Oliver (1988). Armstrong Whitworth Aircraft since 1913. London: Putnam. ISBN 0-85177-826-7.
    • Taylor, Michael (2001). Jane's Fighting Aircraft of World War I. London: Randon House Group. ISBN 1 85170 347 0.
    • Taylor, Michael J. H. (1990). Jane's Fighting Aircraft of World War I. London: Studio Editions. p. 49.
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