Imperial War Museum - picture scanned by me
Ian Dunster 12:32, 28 May 2005 (UTC) from: Allied Secret Weapons a Purnell's History of the World Wars Special - Phoebus - 1975 - (No ISBN) and credited to: 'Imperial War Museum'.
Pictured are 22,000lb Medium Capacity high-explosive deep penetration bombs (Bomber Command code "Grand Slam"). One is being manoeuvred onto a trolley by crane in the bomb dump at Woodhall Spa, Lincolnshire, for an evening raid by 617 Squadron on the railway bridge at Nienburg, Germany, on 22 March 1945.Twenty aircraft took part in the raid and the target was destroyed.The Grand Slam was used by RAF Bomber Command against strategic targets during the Second World War.Known officially as the Bomb, Medium Capacity, 22,000 lb, it was a scaled-up version of the Tallboy bomb and closer to the original size that the bombs' inventor, Barnes Wallis, had envisaged when he first developed his earthquake bomb idea. It was also nicknamed "Ten ton Tess".It remained the most powerful non-atomic aerial bomb used in combat until 2017, when a US GBU-43/B MOAB was used in a 2017 attack against ISIL forces in Afghanistan.*Some of these images have had some dodging and burning done and have been retouched to remove detritus and dust and scratch marks only*
Short title
CH-15369
Author
Air Historical Branch-RAF, Air Historical Branch-RAF