Footage from Lancaster bomber of the RAF Battle of Britain Memorial Flight at Derwent Reservoir. 

Footage from onboard the RAF Memorial Flight Lancaster as it flys over the Derwent Dam, Derbyshire to mark the 70th Anniversary of the famous WWII Dambusters raid.
To mark the 70th anniversary of the Dambusters air raid on 16-17 May 1943, a series of events is taking place around Britain, including a flypast by a Lancaster bomber of the RAF Battle of Britain Memorial Flight at Derwent Reservoir.
Derwent reservoir was one of the sites where pilots from 617 Squadron -- specially stood up to mount the raids -- practised low flying ahead of their daring mission to attack the Möhne, Eder and Sorpe dams, which produced hydroelectric power for the Ruhr and water for German industry.
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