The Airco DH.9 (from de Havilland 9) also known after 1920 as the de Havilland DH.9 was a British single-engined biplane bomber developed and deployed during the First World War.
The DH.9 was a development of Airco's earlier successful DH.4, with which it shared many components. These were mated to an all-new fuselage and the BHP/Galloway Adriatic engine, which promised increased performance. Anticipating its usefulness, the type was ordered in very large numbers for Britain's Royal Flying Corps (RFC).
Upon entering service, the DH.9's performance was found to be unsatisfactory. The Adriatic engine was unreliable and failed to provide the expected power, which gave the DH.9 poorer performance than the aircraft it had been meant to replace. The performance deficit was blamed for the heavy losses they suffered over the Western Front. The redesigned DH.9A was fitted with a more powerful and reliable American Liberty L-12 engine which rectified the shortcomings of the original DH.9 model. Wikipedia
last update: 2023-09-19 12:23:24Known Squadron Assignments: ;98
Known Squadron Assignments: ;218
Known Squadron Assignments: ;98
Known Squadron Assignments: ;107
Known Squadron Assignments: ;49
Known Squadron Assignments: ;98
Known Squadron Assignments: ;99
Known Squadron Assignments: ;99
Known Squadron Assignments: ;104
Known Squadron Assignments: ;27
Not all of this order delivered.Known Squadron Assignments: ;104
may not have been built.Known Squadron Assignments: ;107
Known Squadron Assignments: ;104
Known Squadron Assignments: ;108
Known Squadron Assignments:
Known Squadron Assignments: ;99
Known Squadron Assignments: ;98
Known Squadron Assignments: ;98
Known Squadron Assignments: ;108
Known Squadron Assignments: ;107
Known Squadron Assignments: ;27
Known Squadron Assignments:
Transferred to Canada post war as part of the 1919 Imperial Gift. On CAF/RCAF strength, but never received Canadian registration or serial number. Used as spares. Struck off date also reported as 25 June 1927, in UK sources.Known Squadron Assignments:
Ex RAF, serial number E1000. Part of Imperial Gift. Crashed at Morley, Alberta on 23 August 1920.Known Squadron Assignments:
Ex RAF, serial number E998. Part of Imperial Gift. Delivered by rail to Winnipeg, Manitoba, where it was assembled for use on Trans Canada Flight of October 1920. Flew Regina to Calgary, via Medicine Hat, Alta. Had prepositioned at Moose Jaw, flew to Regina to meet G-CYAN after it developed engine trouble.Known Squadron Assignments:
Ex RAF, serial number E994. Part of Imperial Gift. Category B accident in 1920, no details.Known Squadron Assignments:
Ex RAF, serial number E996. Part of Imperial Gift. Delivered by rail to Winnipeg, Manitoba, on 6 September 1920, where it was assembled for use on Trans Canada Flight of October 1920. Planned to fly Winnipeg to Moose Jaw, forced down at Regina with engine trouble. Damaged when it struck a sand hole while landing at Camp Borden on 12 January 1921. Repaired, back in service by spring 1922.Known Squadron Assignments:
Ex RAF, serial number E1002. Part of Imperial Gift. Operated from Morley, Alberta.Known Squadron Assignments:
Ex RAF, serial number E997. Part of Imperial Gift. Category A accident at Winnipeg, Manitoba on 30 September 1920.Known Squadron Assignments:
Ex RAF, serial number E995. Part of Imperial Gift. Delivered by rail to Winnipeg, Manitoba, where it was assembled for use on Trans Canada Flight of October 1920. One of 3 DH.9s on Western leg, it was the only one to complete the flight, arriving in Vancouver, BC on 17 October 1920. Covered 3,265 miles in 45 flying hours, from Medicine Hat, via Calgary, Revelstoke, and Merritt, BC. Later used at High River, Alberta, and Camp Borden, Ontario.Known Squadron Assignments:
Ex RAF, serial number E992. Part of Imperial Gift. Used at Camp Borden, Ontario.Known Squadron Assignments:
Ex RAF, serial number E993. Part of Imperial Gift. Category B accident at Camp Borden, Ontario on 22 November 1920.Known Squadron Assignments:
Ex RAF, serial number E1001. Part of Imperial Gift. Category C accident at Camp Borden, Ontario, on 20 December 1920.Known Squadron Assignments:
Ex RAF, serial number E999. Part of Imperial Gift. Category D accident at Arthur, Ontario on 17 May 1921.