Vickers E.F.B.7
E.F.B.7 | |
---|---|
Role | Fighter aircraft |
National origin | United Kingdom |
Manufacturer | Vickers Limited |
Designer | Howard Flanders
|
First flight | August 1915 |
Status | Prototype |
Number built | 1 |
Developed from | Flanders B.2 |
The Vickers E.F.B.7 was a prototype
Development and design
In August 1914, following the outbreak of the
The E.F.B.7 was a two-bay biplane with a steel-tube structure with
The E.F.B.7 first flew in August 1915, being passed to the Central Flying School for testing. Sometime early in its career, it was fitted with large cowlings to catch oil from the engines.[5] An order for a further twelve aircraft was placed on 20 August 1915, which were to have a modified fuselage, allowing the pilot to sit closer to the gunner and owing to a shortage of Monosoupapes, powered by two 80 hp (60 kW) Renault 80 hp air-cooled V8 engines. The first prototype was modified to this form, becoming the E.F.B.7A. Performance with these less powerful engines was much poorer and the production orders were cancelled on 16 February 1916 before any more were completed.[6]
Specifications (E.F.B.7)
Data from Vickers Aircraft since 1908[7]
General characteristics
- Crew: Two
- Length: 36 ft 0 in (10.97 m)
- Upper wingspan: 59 ft 9 in (18.21 m)
- Lower wingspan: 37 ft 6 in (11.43 m)
- Wing area: 640 sq ft (59 m2)
- Empty weight: 2,136 lb (969 kg)
- Gross weight: 7,046 lb (3,196 kg)
- Powerplant: 2 × Gnome Monosoupape rotary engine, 100 hp (75 kW) each
Performance
- Maximum speed: 75 mph (121 km/h, 65 kn) at 5,000 ft (1,500 m)
- Endurance: 2.5 hr
- Service ceiling: 9,000 ft (2,700 m)
- Time to altitude: 18 min to 9,000 ft (2,700 m)
Armament
- Guns: 1× Vickers 1-lbr gun
See also
Related development
Aircraft of comparable role, configuration, and era
Notes
References
- Andrews, C. F., and Morgan, E.B. Vickers Aircraft since 1908. London: Putnam, Second edition, 1988. ISBN 0-85177-815-1.
- Bruce, J. M. War Planes of the First World War: Volume Three, Fighters. London: Macdonald, 1969. ISBN 0-356-01490-8.
- Mason, Francis K. The British Fighter since 1912. Annapolis, Maryland, USA: Naval Institute Press, 1992. ISBN 1-55750-082-7.
- Williams, Anthony G., and Gustin, Emmanuel. Flying Guns: World War I and its Aftermath 1914–32. Ramsbury, UK: Airlife, 2003. ISBN 1-84037-396-2.