While the Lancaster saw the vast majority of its service as a high altitude night bomber attacking strategic targets deep within Germany, notably its involvement in the battles of the Ruhr, Hamburg and Berlin, it was a daring low-level raid that gave the Lancaster arguably its finest hour.

The Dambusters raid, as it has since become known, was one the most famous operations of the war. Led by Wing Commander Guy Gibson, the 19 specially modified Lancaster bombers attacked the Mohne, Eder, Sorpe and Ennepe dams, with the Mohne and Eder dams being breached. This caused widespread destruction to both the German war effort and to food production.

The dams were breached using a special type of bomb, the Upkeep mine, or ‘bouncing bomb’. This was rotated before being dropped so that it skipped along the surface before impacting against the dam, sinking and exploding, thus rupturing the dam. This avoided the need for a high altitude raid and avoided the torpedo nets. The attack was a partial success but greatly improved the morale of the Allies and the British public.

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Reserve aircraft flown by Flight lieutenant DFC (royal Canadian Air Force) No.617 Squadron, "Operation Chastis" Royal Air Force Scampton, England 16 / 17 May 1943.
Aircraft flown by Flight lieutenant Robert Norman Gearge Barlow DFC (royal Canadian Air Force) No.617 Squadron, "Operation Chastis" Royal Air Force Scampton, England 16 / 17 May 1943. Aircraft and crew lost in action.

Afmetingen van de Lancaster B.III Special;