Low Level Bombsight, Mark III use in October 1942. Coastal Command had priority on deliveries and only small numbers reached Bomber Command. The first examples arrived in May 1943 and were fit to Douglas Boston bombers of 2 Group. In 1944 the sight was trialled on the Avro Lancasters of No. 617 Squadron RAF, the Dambusters, who carried out a single low-level attack with them in late 1944. Most examples sent to Bomber Command equipped a small number of De Havilland Mosquito aircraft in No. 627 Squadron RAF (who normally operated as pathfinders) and No. 8 Group RAF (Pathfinder Force). The sight remained with Coastal
RAF Bomber Command Memorial year after its unveiling, the memorial was vandalised. The word 'Islam' was spray-painted on the Bomber Command Memorial and also on the Animals in War Memorial nearby. In March 2015, Les Munro, one of the last surviving members of the Dambusters Raid, intended to sell his war medals and flight logbook at auction to raise funds for the upkeep of the RAF Bomber Command Memorial. The auction was pulled after Lord Ashcroft donated £75,000 to the Royal Air Force Benevolent Fund towards the upkeep, with a further NZ$19,500 donated by the Museum of Transport and Technology in Auckland, New Zealand,