Vickers E.S.1

Source: Wikipedia, the free encyclopedia.

E.S.1
Role Fighter aircraft
National origin United Kingdom
Manufacturer Vickers Limited
Designer Rex Pierson
Primary user Royal Flying Corps
Number built 3

The Vickers E.S.1 was an early

First World War. A single-seat biplane, only three E.S.1s were built, although at least one was used by a home defence squadron of the Royal Flying Corps
.

Development and design

In late 1914, Harold Barnwell, chief test pilot with Vickers Limited, designed a single-seat "scout" or fast reconnaissance aircraft, and had it built without the knowledge or approval of his employers, "borrowing" a Gnome Monosoupape rotary engine from Vickers' stores to power the aircraft. Barnwell attempted a first flight of his design, named the "Barnwell Bullet" in early 1915, but the aircraft crashed and was wrecked, possibly due to a miscalculated centre of gravity.[1][2] Now aware of Barnwell's design, Vickers instructed their junior designer Rex Pierson to redesign the Bullet.[1][2]

The redesigned aircraft, the Vickers E.S.1 (Experimental Scout), was a single-seat

unstaggered wings with ailerons on both the upper and lower wings. Like the Barnwell Bullet, the E.S.1 was powered by a Monosoupape engine, closely cowled into a circular-section fuselage. The pilot's cockpit was situated under the trailing edge of the upper wing, from which the view both downwards and upwards was poor.[3][4]

The E.S.1 first flew in August 1915,

Clerget or Le Rhône engine. These aircraft had a modified fuselage and a large cutout in the upper wing to improve the view for the pilot,[6] and were designated Vickers E.S.1 Mark II.[a] No further production followed, with the aircraft being noted as being tiring to fly and difficult to land, although it did form the basis for the Vickers F.B.19.[7][8]

Operational history

The unarmed E.S.1 was sent to France for operational trials at Saint-Omer in France in 1916, where it was criticised for the poor view for the pilot and for the fact that if the engine was mishandled, petrol could collect in the cowling and catch fire.[9] It was finally badly damaged in a crash when flown by Captain Patrick Playfair.[10] After rebuilding and arming with a synchronised Vickers gun, the modified E.F.1 Mk I was sent to No. 50 (Home Defence) Squadron.[11][12]

Operators

 United Kingdom

Specifications (E.S.1 Mk II, Clerget engine)

Data from Vickers Aircraft since 1908[13]

General characteristics

  • Crew: One
  • Length: 20 ft 3 in (6.17 m)
  • Wingspan: 24 ft 5+1⁄2 in (7.455 m)
  • Height: 8 ft 0 in (2.44 m)
  • Wing area: 215 sq ft (20.0 m2)
  • Empty weight: 981 lb (445 kg)
  • Gross weight: 1,502 lb (681 kg)
  • Powerplant: 1 ×
    Clerget 9-cylinder rotary engine
    , 110 hp (82 kW)

Performance

  • Maximum speed: 112 mph (180 km/h, 97 kn) at sea level
  • Endurance: 2 hr
  • Service ceiling: 15,500 ft (4,700 m)
  • Rate of climb: 1,000 ft/min (5.1 m/s)
  • Time to altitude: 18 min to 10,000 ft (3,050 m)

Armament

See also

Aircraft of comparable role, configuration, and era

Related lists

Notes

  • a Also sometimes called Vickers E.S.2, although contemporary reports all refer to these aircraft as E.S.1s.[11]
  1. ^ a b Andrews and Morgan 1988, p. 60.
  2. ^ a b c Bruce 1969, p. 86.
  3. ^ Bruce 1969, pp. 86–87.
  4. ^ Mason 1992, pp. 43–44.
  5. ^ Bruce 1969, p. 87.
  6. ^ Bruce 1969, pp. 88–89.
  7. ^ Bruce 1969, p. 91.
  8. ^ Mason 1992, p. 44.
  9. ISBN 978-1781551974
    .
  10. ^ Bruce 1969, pp. 87–88.
  11. ^ a b Bruce 1969, p. 89.
  12. ^ Green and Swanborough 1994, p. 576.
  13. ^ Andrews and Morgan 1988, p. 74.

References

Wikimedia Commons has media related to Vickers E.S.1.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Vickers_E.S.1&oldid=1169145507"