Machine generated contents note: 1.The Rationale for the Raids & Early Preparations -- 2.The Formation of Squadron X: 11 March-31 March 1943 -- 3.Training Intensifies: 1 - 30 April 1943 -- 4.Operation Chastise Approved: 1 - 15 May 1943 -- 5.Last Minute Pr eparations at Scampton: Sunday 16 May 1943, up to 21.00 hours -- 6.Take-off & Flight Over the North Sea: 21.00 - 22.50, Sunday 16 May -- 7.Fortress Europe Attempts to Repel Raids: 22.51-23.59, Sunday 16 May -- 8.Attack on Mohne: Early Attacks Over Target X & Target Z:00.00 - 00.30, Monday 17 May -- 9.Breach of Mohne Dam: Nigger at Target X: 00.31 - 01.00, Monday 17 May -- 10.Devastation in Mohne Valley: Bombers Move on to Target Y:01.01 - 01.45, Monday 17 May -- 11.Breach of Eder Dam: Dinghy at Target Y: 01.46 - 02.00, Monday 17 May -- 12.Chaos in the Mohne & Eder Valleys: 02.01 - 03.00, Monday 17 May -- 13.Final Attack at the Sorpe: The Last Manoeuvres at Target Z: 03.01 - 04.00, Monday 17 May -- Contents note continued: 14.The Return to Scampton: 04.01 - 10.00, Monday 17 May -- 15.The Impact on the British & German War Effort -- 16.The Raids in Perspective.