article_snippet: But it took more than a year to convince RAF chiefs that such a bomb might work and should be attempted.
article_snippet: The final solution, called Upkeep, was a cylindrical bomb, weighing four tons, spinning backwards at 500 rpm.
article_snippet: It had to be dropped from precisely 60ft above the water at not more than 240mph.
article_snippet: Operation Chastise, dubbed the 'Dambusters Raid' was carried out overnight on the 16 May 1943 by the 617 Squadron of the RAF - specially-created for the job - that was led by Guy Gibson.
article_snippet: Two of the dams were breached, leading to serious flooding of the surrounding area.
article_snippet: However, it did not make a significant dent in the country's industrial production, as hoped.
article_snippet: The most significant outcome of the 'Dambusters Raid' was the positive effect the 'Dambusters Raid' had on morale - giving Allied troops, and those left at home, a much-needed boost.
article_snippet: Lancaster bombers (pictured in file image) dropped the 'bouncing bombs' in the 'Dambusters Raid' .