World Library  
Flag as Inappropriate
Email this Article

Vickers F.B.12

Article Id: WHEBN0019174625
Reproduction Date:

Title: Vickers F.B.12  
Author: World Heritage Encyclopedia
Language: English
Subject: Rotary engine, List of fighter aircraft, Vickers-Armstrongs, Gnome Monosoupape, Le Rhône 9J, Le Rhône 9C
Publisher: World Heritage Encyclopedia

Vickers F.B.12

Role Fighter
National origin United Kingdom
Manufacturer Vickers Limited
First flight July 1916
Number built ~22

The Vickers F.B.12 was a biplane pusher fighter aircraft developed during World War I by Vickers Limited. The failure of the engine for which it was designed, and the obsolescence of the pusher configuration, resulted in its remaining an experimental type only.

Development and design

At the start of the First World War, Vickers entered into a partnership with the Hart Engine Company to develop a 150 hp (110 kW) nine-cyliner radial engine designed by Hart. This engine was planned to power a number of new designs by Vickers, the first of which was a small single-engine pusher biplane fighter, the F.B.12.[1]

The F.B.12 resembled the D.H.2 and F.E.8; wood and fabric wings with rounded tips. The circular nacelle was framed in steel tubing, with the engine directly behind the cockpit, driving a wooden propeller. The tail was at the end of an open steel boom. A .303 in (7.7 mm) machine gun was placed inside the front of the nacelle, with only the barrel protruding.

The first FB.12 flew in June 1916, powered by a 80 hp (60 kW) Le Rhône rotary engine as the Hart was not yet available. With this engine, it proved to be underpowered and was re-fitted with a 100 hp (75 kW) Gnome Monosoupape engine. It was then rebuilt with increased wing span and area, becoming the F.B.12A.[2] In December 1916 it was sent to France for operational testing, where it was deemed as good as the D.H.2 and F.E.8, a rather back-handed recommendation as both these types were by now well outclassed by the latest German fighters.

The F.B.12B was similar to the F.B.12A, but fitted with the originally intended Hart engine, flying early in 1917.[2] In November 1916, meanwhile, the War Office placed an order for 50 Hart powered aircraft, designated the F.B.12C for the RFC. The F.B.12B crashed during tests in early 1917, leading to Vickers abandoning the Hart. Only 18 of the order were built, being fitted with a number of different engines including a 110 hp (80 kW) Le Rhône and a 100 hp (75 kW) Anzani radial.[3] Tested between May and July 1917, only 1 F.B.12C was delivered, to a Home Defence unit.

The F.B.12D was the final variation, only 1 prototype was produced with a larger 110 hp (80 kW) Le Rhone engine.


 United Kingdom


Mono-Gnome engine
150 hp (110 kW) Hart radial engine
flat-sided nacelle, larger fin and rudder. 18 production aircraft built.
110 hp (80 kW) Le Rhone or 100 hp (75 kW) Gnome Monosoupape engine

Specifications (F.B.12)

Data from War Planes of the First World War: Volume Three[4][5]

General characteristics
  • Crew: 1
  • Length: 21 ft 6 in (6.55 m)
  • Wingspan: 26 ft in (7.93 m)
  • Height: 8 ft 8 in (2.64 m)
  • Wing area: 204 ft2 (19.0 m2)
  • Empty weight: 845 lb (384 kg)
  • Gross weight: 1,275 lb (580 kg)
  • Powerplant: 1 × Gnome Monosoupape nine-cylinder rotary engine, 100 hp (75 kW)


  • Maximum speed: 86 mph (138 km/h)
  • Endurance: 3 hours
  • Service ceiling: 11,500 ft (3,500 m)
  • One .303 in Lewis gun
  • See also

    Related lists



    • .
    • .

    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, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for 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.