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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Largely dry with cloud and some sunny spells this afternoon with light winds.
Dry with sunny spells and light winds.
Union boss says he "deeply regrets" the disruption to people's travel plans after several days of talks failed to break the deadlock.