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Airco DH.10

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Title: Airco DH.10  
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Subject: Airco DH.9A, Airco, De Havilland Dormouse, De Havilland Swallow Moth, De Havilland DH.72
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Airco DH.10

DH.10 Amiens
Amiens Mark II
Role Bomber
Manufacturer Airco
Designer Geoffrey de Havilland
First flight 4 March 1918
Introduction November 1918
Retired 1923
Primary user Royal Air Force
Number built 258

The Airco DH.10 Amiens was a British twin-engined medium bomber designed and built towards the end of the First World War. It served briefly with the RAF postwar.

Design and development

The DH.10 was designed by Geoffrey de Havilland to meet the requirements of Air Board Specification A.2.b for a single- or twin-engined day bomber.[1] It was a development of the earlier Airco DH.3 bomber, which had flown in 1916, but had been rejected by the War Office because of a belief that strategic bombing would be ineffective and that twin engines were impracticable.[2]

The first prototype flew on 4 March 1918, powered by two 230 hp (186 kW) Siddeley Puma engines mounted as pushers.[3] When evaluated by the RAF, the performance of this prototype was well below expectation, reaching only 90 mph (145 km/h) at 15,000 ft (4,572 m) with the required bomb load,[1] compared with the specified 110 miles per hour (180 km/h).[4] Owing to this poor performance, the DH.10 was redesigned with more powerful engines in a tractor installation.

The second prototype, known as the Amiens Mark II was powered by two 360 hp (268 kW) Rolls-Royce Eagle VIII engines and first flew in April 1918, showing greatly superior performance and proving to be faster than the DH.9A while carrying twice the bomb load.[3] While shortages of the Eagle meant that the Amiens Mark II could not be put into production, it proved the design for the definitive aircraft, the Amiens Mark III, which was powered by the more readily available 395 hp (295 kW) Liberty 12 from America, as was the DH.9A.[1] Following successful evaluation, large orders were placed, with a total of 1,291 ordered.[5]

Operational history

First deliveries of DH.10s were to No. 104 Squadron RAF in November 1918, flying a single bombing mission on 10 November 1918 before the Armistice ended the First World War.[5] Postwar, DH.10s equipped 120 Squadron, which used them to operate an air mail service to the British Army of Occupation on the Rhine.[6] Amiens were also used by 97 Squadron (later re-numbered as 60 Squadron) which deployed to India. It provided support to the Army on the North-West Frontier, being used for bombing operations in the Third Anglo-Afghan war.[5] DH.10s were also used by 216 Squadron in Egypt, where they provided an air mail service between Cairo and Bagdhad, starting on 23 June 1921.[3]


Daimler were producing 80 a month by the end of 1918. They were part of the BSA group which purchased Airco after the war and began a charter and scheduled service known as Daimler Air Hire and Daimler Airway.

Apart from the Aircraft Manufacturing Companies order for 420 aircraft the following companies had sub-contracts to build the DH.10, although due to the end of the war not all were built:

  • The Birmingham Carriage Company - 100
  • Daimler Limited - 150
  • National Aircraft Factory No.2 (Heaton Chapel) - 200
  • The Siddeley-Deasy Car Company - 150
  • The Alliance Aero Company - 200
  • Mann, Egerton & Company - 75


Amiens I
Prototype powered by two pusher Puma engines.
Amiens II
Prototype powered by two tractor Rolls-Royce Eagle engines.
Amiens III
Main production variant, powered by Liberty 12 engines mounted midway between wings, 221 built.
Amiens IIIA
Modified Mark III with engines directly attached to lower wings, 32 built, also known as the DH.10A
Amiens IIIC
Version powered by Rolls-Royce Eagle engines in case of shortages of Liberty engines, 5 built, also known as the DH.10C.


Military operators

 United Kingdom

Civil operators

 United Kingdom
  • Aircraft Transport and Travel Ltd operated the only DH.10 placed on the British Civil Register. This aircraft, G-EAJO, was used for regular airmail flights between Hendon and Renfrew during the railway strike in October 1919. It was destroyed in a crash in April 1920.[8]
 United States

Specifications (Amiens IIIA)

Data from The British Bomber since 1914[5]

General characteristics


  • 1 or 2 × .303 in (7.7 mm) Lewis guns on Scarff rings at both nose and midships gunners cockpits
  • Up to 920 lb (417 kg) bombs carried internally

See also

Aircraft of comparable role, configuration and era

Boulton Paul Bourges


  1. ^ a b c Mason 1994, p.106.
  2. ^ Mason 1994, p.48.
  3. ^ a b c Thetford 1957, p.146.
  4. ^ Jarrett Aeroplane Monthly September 1992, p. 15.
  5. ^ a b c d Mason 1994, p.107.
  6. ^ Jackson 1987, pp.142-143.
  7. ^ Thetford Aeroplane Monthly October 1992, p. 10.
  8. ^ Jackson 1973, p.323.
  9. ^ Jackson 1987, p.143.
  10. ^ Thetford 1957, p.147.
  • Jackson, A. J. British Civil Aircraft Since 1919, Volume 2. London: Putnam, Second Edition, 1973. ISBN 0-370-10010-7.
  • Jackson A. J. De Havilland Aircraft since 1909. London:Putnam, 1987. ISBN 0-85177-802-X.
  • Jarrett, Phillip. "By Day and By Night - Part Four". Aeroplane Monthly, September 1992, Vol. 20 No. 9. pp. 13–20. ISSN 0143-7240.
  • Mason, Francis K. The British Bomber since 1914. London: Putnam Aeronautical Books, 1994. ISBN 0-85177-861-5.
  • Thetford, Owen. Aircraft of the Royal Air Force 1918-57, 1st edition. London: Putnam, 1957.
  • Thetford, Owen. "By Day and By Night - Part Five". Aeroplane Monthly, October 1992, Vol. 20 No. 10. pp. 6–11. ISSN 0143-7240.

External links

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