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The Bomb, Medium Capacity, 22,000 lb (Grand Slam) was a 22,000 lb (10,000 kg) earthquake bomb used by RAF Bomber Command against German targets towards the end of the Second World War. The bomb was originally called Tallboy Large until the term Tallboy got into the press and the code name was replaced by "Grand Slam".
The current gate guardian at Scampton is a former Red Arrows Hawk T.1 XX306. [83] Positioned in front of the Station Headquarters, it was unveiled by the then Station Commander Wing Commander Michael Harrop during a ceremony on 12 October 2015. [83] The aircraft was constructed at BAe Dunsfold and handed over to the RAF on 23 May 1980. [83]
ROF Risley, (Filling Factory No.6) was a large World War II Royal Ordnance Factory filling munitions, including the Grand Slam bomb, in the UK. It is located roughly halfway between Liverpool and Manchester.
The site was used to develop a more effective air-raid shelter, built over five and a half months at a cost of £250,000.Once complete, the site became the first to be subjected to the devastating effect of Barnes Wallis's Grand Slam bomb, which was test-dropped on the site.
During World War II, Royal Air Force Bomber Command used the Grand Slam, officially known as the "Bomb, Medium Capacity, 22,000 lb" 42 times. At 22,000 lb (10,000 kg) total weight, these earthquake bombs were larger and heavier than the MOAB. However, half their weight was due to the cast high tensile steel casing necessary for penetrating the ...
Cooper bombs - "20lb" bomb used in First World War; Blockbuster bomb - "High Capacity" bombs carried by the Avro Lancaster, de Havilland Mosquito and Vickers Wellington. Bouncing bomb - Specialist mine for attacking German dams. Grand Slam bomb - 10 ton earthquake bomb, only used for special targets. Tallboy bomb - 5 ton bomb, only used by the ...
The bombers were escorted by ninety RAF North American Mustang fighters of 11 Group [3] The Lancasters attacking Valentin each carried a single large earthquake bomb – seven carried the 5 ton 'Tallboy', thirteen carried the 10 ton 'Grand Slam'. Two 'Grand Slam's hit the target and penetrated about half-way through the 15-foot (4.6 m) thick ...
The Bielefeld viaduct was only closed for brief periods by 54 raids dropping 3,500 tons; but in its first use on 14 March 1945 the "Grand Slam" destroyed whole sections of the viaduct. After World War II, the United States developed the 43,000-pound (20,000 kg) T12 demolition bomb, which was designed to create an earthquake effect.