World Library  
Flag as Inappropriate
Email this Article

Vickers E.F.B.7

Article Id: WHEBN0023911457
Reproduction Date:

Title: Vickers E.F.B.7  
Author: World Heritage Encyclopedia
Language: English
Subject: List of fighter aircraft, Vickers-Armstrongs
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

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 British fighter aircraft of the First World War. A twin-engined biplane, the E.F.B.7 was unsuccessful, only a single example being built.

Development and design

In August 1914, following the outbreak of the First World War, the British pioneer aircraft designer Howard Flanders was hired by Vickers Limited as an aircraft designer, with his first job to design a fighting aircraft to carry a Vickers 1 pounder (37 mm) cannon.[1] (This was not the well-known pom-pom, but a smaller and lighter long recoil cannon firing less powerful ammunition.[2]) Flanders produced a twin-engined development of his earlier Flanders B.2 single-engined biplane, the E.F.B.7 (Experimental Fighting Biplane No.7).[1]

The E.F.B.7 was a two-bay biplane with a steel-tube structure with plywood and fabic covering. It had unstaggered wings, with the upper wings of much greater (i.e. 22 ft (6.7 m)) span than the lower ones. It was powered by two tractor Gnome Monosoupape rotary engines mounted between the wings. The gunner was sat in a large cockpit in the nose of the aircraft, with a rotating mount for the cannon and an armoured floor claimed to be bulletproof, while the pilot sat in a cockpit behind the wings, so that the pilot and gunner could not communicate.[3][4]

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, however, 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 (10.98 m)
  • Wingspan: 59 ft 6 in (18.14 m)
  • Wing area: 640 ft2 (59.5 m2)
  • Empty weight: 2,136 lb (971 kg)
  • Gross weight: 3,196 lb (1,453 kg)
  • Powerplant: 2 × Gnome Monosoupape rotary engine, 100 hp (75 kW) each

Performance

  • Maximum speed: 75 mph (121 km/h)
  • Endurance: 2½ hours
  • Service ceiling: 9,000 ft (2,700 m)
  • Rate of climb: 278[8] ft/min (1.4 m/s)
Armament
  • 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.

    This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
     
    Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
     
    By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
     


    Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
    a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.