A.D. Scout Sparrow

Air Department Sparrow - 1915
Air Department Sparrow - 1915

The AD Scout (later known as the Sparrow) was designed by Harris Booth of the British Admiralty's Air Department as a fighter aircraft to defend Britain from Zeppelin bombers during World War I.

This aircraft was an unconventional heavily-staggered, single-bay biplane, built to meet an Admiralty requirement for a fighter built from commercially obtainable materials and which could be armed with the Davis two-pounder quick-fire recoilless gun. The gun was mounted in the bottom of a short, single-seat nacelle, the top longerons were bolted directly to the main spars of the upper wing. The A.D. Scout was powered by a 100 hp Gnôme Monosoupape rotary engine driving a 9 ft pusher airscrew. The pilot had a excelent view in nearly every direction. A twin-rudder tail was attached by four booms, and it was provided with an extremely narrow-track "pogo stick" type undercarriage.
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A.D. Scout Sparrow
  • Role: Fighter
  • National Origin: Britain
  • Manufacturer: Air Department
  • Designer: Harris Booth
  • First flight: 1915
  • Primary user: Royal Naval Air Service - testing only
  • Number built: 4
  • Status: Prototype
  • Retired: 1915
  • Wingspan: 33 ft 5 in (10.18 m)
  • Length: 22 ft 9 in (6.93 m)
  • Height: 10 ft 3 in (3.12 m)
  • Powerplant: 1× Gnôme Monosoupape rotary engine, 100 hp (75 kW)
  • Maximum speed: 84 mph (73 knots, 135 km/h)
  • Range: 210 miles (336 km)
  • Crew: 1
  • Armament: 1× 2-pounder (40 mm) Davis recoilless gun (intended, but never fitted in view of the fragility of the Scout's construction)

References

  1. AD Scout. (2012, January 26). In Wikipedia, The Free Encyclopedia. Retrieved 09:01, March 24, 2012, from http://en.wikipedia.org/w/index.php?title=AD_Scout&oldid=473329231
  2. A.D. Scout Retrieved 08:55, March 24, 2012, from www.aviastar.org/air/england/air_scout.php
  3. Jackson, Aubrey Joseph Blackburn Aircraft since 1909 (1st ed.) 16 March 1989 pp. 98 - 101. London: Putnam & Company Ltd.. pp. 98 - 101. ISBN 0851778305.
  4. Lewis, Peter. The British Fighter since 1912 (4th ed.) 1979, pp. 392393. London: Putnam & Company Ltd.. ISBN 0-370-10049-2.
  5. Mason, Francis K.. The British Fighter since 1912. Annapolis, USA: Putnam & Company Ltd.. ISBN 1-55750-082-7.
  6. Bruce, J.M.. War Planes of the First World War: Volume One Fighters. London: Macdonald 1965, p.5.

Vickers E.F.B.7

Vickers E.B.7 - 1914
Vickers E.B.7 - 1914

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.

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. (This was not the well-known pom-pom, but a smaller and lighter long recoil cannon firing less powerful ammunition.) 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).
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Vickers E.F.B.7
  • Role: Fighter aircraft
  • National Origin: United Kingdom
  • Manufacturer: Vickers Limited
  • Designed By: Howard Flanders
  • First Flight: August 1915
  • Status: Prototype
  • Number Built: 1
  • Developed From: Flanders B.2
  • Powerplant: 2 × Gnôme Monosoupape rotary engine, 100 hp (75 kW) each
  • Wingspan: 59 ft 6 in (18.14 m)
  • Wing Area: 640 ft² (59.5 m²)
  • Length: 36 ft 0 in (10.98 m)
  • Empty Weight: 2,136 lb (971 kg)
  • Gross Weight: 3,196 lb (1,453 kg)
  • Maximum Speed: 75 mph (121 km/h)
  • Endurance: 2½ hours
  • Service Ceiling: 9,000 ft (2,700 m)
  • Rate of Climb: 278 ft/min (1.4 m/s)
  • Crew: Two
  • Armament: 1× Vickers 1-lbr gun

References

  1. Vickers E.F.B.7 Retrieved from http://en.wikipedia.org/wiki/Vickers_E.F.B.7
  2. Andrews, C.F. and Morgan, E.B. Vickers Aircraft since 1908. London:Putnam, Second edition, 1988, p.104. ISBN 0 85177 815 1.
  3. Bruce, J.M. War Planes of the First World War: Volume Three, Fighters. London:Macdonald, 1969, pp. 81-85. ISBN 0 356 01490 8.
  4. Mason, Francis K. The British Fighter since 1912. Annapolis, Maryland, USA:Naval Institute Press, 1992, p.43. ISBN 1-55750-082-7.
  5. Williams, Anthony G. and Gustin, Emmanuel. Flying Guns: World War I and its Aftermath 1914-32 pp. 86-88. Ramsbury, UK:Airlife, 2003. ISBN 1 84037 396 2.

Vickers E.F.B.8

Vickers E.B.8 - 1915
Vickers E.F.B.8

The Vickers E.F.B.8 was a prototype British twin-engined fighter of the First World War. It was abandoned after only one aircraft was built, single engined fighters being considered to have superior manoeuvrability.

In autumn 1915, as well as the big, cannon armed, Vickers E.F.B.7, Vickers were working on the design of a second twin-engined fighter, the E.F.B.8 (Experimental Fighting Biplane No. 8). This design, which was assigned to Rex Pierson was for a smaller, machine gun armed fighter. With twice the power of Vickers' single-engined pusher Vickers F.B.5 Gunbus, which, while possessing an effective armament, was far too slow, the E.F.B.8 was hoped to have adequate performance. Like the E.F.B.7, the E.F.B.8 was a two-bay biplane with a steel-tube structure with plywood and fabic covering, and powered by two tractor Gnôme Monosoupape rotary engines mounted between the wings. It was however, much more compact, with a wingspan 20 ft less and 500 lb (230 kg) lighter. The gunner, armed with a single Lewis gun was sat in the nose, while the pilot again like the E.F.B.7. sat under the trailing edge of the wings, remote from the gunner and hindering co-operation between them in battle.
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Vickers E.F.B.8
  • Type: Fighter aircraft
  • National Origin: United Kingdom
  • Manufacturer: Vickers Limited
  • Designed By: Rex Pierson
  • First Flight: November 1915
  • Status: Prototype
  • Number Built: 1
  • Powerplant: 2× Gnôme Monosoupape rotary engine, 100 hp (75 kW) each
  • Wingspan: 38 ft 4 in (11.69 m)
  • Wing Area: 468 ft² (43.5 m²)
  • Length: 28 ft 2 in (8.59 m)
  • Height: 9 ft 10 in (3.00 m)
  • Empty Weight: 1,840 lb (836 kg)
  • Loaded Weight: 2,610 lb (1,186 kg)
  • Maximum Take-off Weight: 2701 lb (1225 kg)
  • Maximum speed: 98 mph (85 knots, 157 km/h) at 5,000 ft (1,520 m)
  • Service Ceiling: 14,000 ft (4,300 m)
  • Endurance: 3 hours
  • Climb to: 5,000 ft (1,520 m) 10 min
  • Crew: Two
  • Armament: 1× .303 in (7.7 mm) Lewis gun in nose

References

  1. From Wikipedia Vickers E.F.B.8, "http://en.wikipedia.org/wiki/Vickers_E.F.B.8"
  2. Andrews, C.F. and Morgan, E.B. Vickers Aircraft since 1908. London:Putnam, Second edition, 1988. ISBN 0 85177 815 1.
  3. Bruce, J.M. "British Aeroplanes 1914-18. London:Putnam, 1957.
  4. Bruce, J.M." War Planes of the First World War: Volume Three, Fighters". London:Macdonald, 1969. ISBN 0 356 01490 8.
  5. Green, William and Swanborough, Gordon. "The Complete Book of Fighters. New York, Smithmark, 1994. ISBN 0-8317-3939-8.
  6. Mason, Francis K. "The British Fighter since 1912". Annapolis, Maryland, USA:Naval Institute Press, 1992. ISBN 1-55750-082-7.