Bark, Robert Charles
Killed in Flying Accident 1918-03-27

Birth Date: unkown date
Born: York County, Ontario
Robert John Bark & and Julia Elizabeth Austen
Home: Toronto, Ontario
Enlistment: Toronto, Ontario: enlisted in the RFC
Enlistment Date: 1917-01-15
Service
RFC
Unit
103 (OT) TS- Training Squadron (RFC)
Base
Salisbury England
Rank
Second-Lieutenant
Position
AM3
Service Numbers
70430, RFC
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First Burial

Airco (pre de Havilland) DH 9 DH 9a

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