Philip West pays tribute to the Dambusters of RAF 617 Squadron and their daring mission in May 1943. On the night of 16-17 May, Les Knight and his crew took part in the raid on the dams and were responsible for breaching the Eder Dam. The crew continued on operations until September 1943, when trying to carry out a raid on the Dortmund Ems canal in fog, the plane was damaged and crashed. After ensuring his crew successfully baled out, Les Knight remained on the aircraft and was never seen again. 40 Artist Proof Editions. Each edition is signed by the artist Philip West along with two Dambuster veterans of 617 Squadron: Squadron Leader George ‘Johnny’ Johnson DFM (Bomb Aimer with 617 Squadron) who flew on Lancaster AJ-T Flying Officer Raymond E Grayston (Flight Engineer – 617 Squadron) who flew with Les Knight's crew. He baled out, was captured and spent the remainder of the war as a POW in Stalag Luft 3. Overall Size: