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Vickers Vireo

Vickers Vireo Aircraft Information

Vickers Vireo

Vireo

Vickers Vireo

Role: Experimental ship-borne fighter
National origin: United Kingdom
Manufacturer: Vickers Ltd.
First flight: March 1928
Number built: 1

The Vickers Vireo was an experimental low wing all-metal monoplane built to explore both all-metal service aircraft and the use of catapult launched ship board fighters. Only one was built.

Development

The Vickers-Wibault construction method was based on the patents of Michel Wibault, who began working with Vickers in 1922. It was a way of producing an all-metal aircraft with an airframe built up from simple, non-machined metal shapes, covered by very thin (0.4 mm or 0.016 in) corrugated light alloy sheets. On the wings the corrugations were aligned along the chord and longitudinally on he fuselage. The resulting fuselage was not a monocoque, but was internally braced, and the skin on the wings was not stressed. Panels were riveted to each other and to the underlying structure. Vickers first experience of the method was with the licence built Wibault Scout. The first Vickers design using this construction was the Vireo.

Airplane Picture - Vickers Vireo

Picture - Vickers Vireo

The Vireo (named after a Latin word thought to mean Greenfinch) was built to Air Ministry specification 17/25, intended to evaluate both all-metal aircraft and low powered, catapult launched, carrier borne fighters. It was a low winged single engined monoplane of rather angular appearance with a flat sided, deep fuselage except immediately aft of the engine. Forward of the overwing open cockpit the nose fell away, giving it a slightly humped look. The flying surfaces were all without external bracing; the wing was tapered, of deep section and incorporated twin machine guns. The horizontal stabilser had a straight leading edge but tapered at the rear. There was a square topped, balanced rudder but no fin.

The Vireo was powered by an uncowled 230 hp (170 kW) Armstrong Siddeley Lynx IV radial engine driving a two bladed propeller. The specification called for the fitting of either wheels or floats and both were used, though the Vireo took its Ministry tests as a landplane. These tests began at RAF Martlesham Heath a month after the initial flights in March 1928. The long gap between the tender submission in December 1925 and the first flight was partly because the novel structure had undergone structural and aerodynamic pre-flight tests at the Royal Aircraft Establishment. There were a few minor incidents during the tests, but more serious was a tendency to drop heavily at touchdown which led to some rear fuselage damage. This was later attributed to root interference of the highly cambered wing leading to nasty stall characteristics. Nevertheless, by July the Vireo was on board HMS Furious for deck landing trials.

The Air Ministry's interest in low powered on-board fighters, catapult-launched to compensate for their small engines waned when the Vireo proved no faster than the conventional ship board aircraft like the Fairey IIIF. The Vireo experience gave Vickers enough confidence in all metal fighters to proceed with their later Jockey and Venom designs.

Specifications

Data from Andrews & Morgan 1988, pp. 222

General characteristics

Crew: 1
Length: 27 ft 8 in (8.43 m)
Wingspan: 35 ft 0 in (10.67 m)
Height: 11 ft 5 in (3.45 m)
Wing area: 214 ft² (19.88 m²)
Empty weight: 1,921 lb (871 kg)
Gross weight: 2,553 lb (1,158 kg)
Powerplant: 1 x— Armstrong Siddeley Lynx IV 7-cylinder radial, 230 hp (170 kW)

Performance

Maximum speed: 120 mph (193 km/h)
Service ceiling: (service) 14,750 ft (4,496 m)

Armament

2x— Vickers Auto RC (type E) machine guns in wings

Vickers Vireo Pictures

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Source: WikiPedia

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