Amid the euphoria that followed the Dambusters raid in May 1943 was the sober realisation that the RAF had paid a high price. Fifty three airmen were killed, among them most of Charlie Crew.
Miraculously, one survived - rear gunner Fred Tees from Sussex. Correspondent Derek Johnson travelled to Germany with his nephew to find the crew and Fred's final resting place.
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Tuesday afternoon's weather for the west of the region
Tuesday afternoon's weather for the east of the region
Tuesday's weather for the west of the region