Vickers 125 Vireo
1928
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Vickers 125 Vireo

The Wibault system of metal airframe construction, with which Vickers had gained experience in building the Type 121 Wibault Scout, was utilised for a low-powered shipboard fighter to Specification 17/25. Submitted to the Air Ministry on 15 December 1925, this type, to be named Vireo, was awarded a one-aircraft contract. Intended to use either wheel or float undercarriage, and suitable for launching from a catapult, the Vireo was powered by a 230hp supercharged Armstrong Siddeley Lynx IV seven-cylinder radial air-cooled engine and had provision for two wing-mounted 7.7mm machine guns firing outside the propeller disc. The structural design of the Vireo followed closely that of the Type 121, with the airframe virtually entirely covered by corrugated metal skinning. Flown early in March 1928 - flight testing having been delayed by extensive aerodynamic and structural tests undertaken at the Royal Aircraft Establishment - the Vireo was evaluated at Martlesham Heath in April and deck trials then took place aboard HMS Furious on 12 July. The Vireo was fitted with a twin-float undercarriage, but, in the event, seaplane trials that were to have taken place at the MAEE, Felixstowe, were not proceeded with. The speed performance of the Vireo was inevitably poor owing to the combination of low engine power and high drag resulting from the corrugated surfaces, and it suffered extremely unpleasant stalling characteristics. In consequence, development was terminated.

3-View 
Vickers 125 VireoA three-view drawing (1280 x 952)


Specification 
 WEIGHTS
    Take-off weight1157 kg2551 lb
    Empty weight885 kg1951 lb
 DIMENSIONS
    Wingspan10.67 m35 ft 0 in
    Length8.43 m28 ft 8 in
    Height3.48 m11 ft 5 in
    Wing area19.88 m2213.99 sq ft
 PERFORMANCE
    Max. speed193 km/h120 mph
    Ceiling4495 m14750 ft

Vickers 125 Vireo

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