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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 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.
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.
Using the codes eases coordination and improves understanding during multiservice operations. The codes are intended for use by air, ground, sea, and space operations personnel at the tactical level. Code words that are followed by an asterisk (*) may differ in meaning from NATO usage. There is a key provided below to describe what personnel ...
The final T-12 weighed 43,600 lb (19,800 kg). This was twice the size of the United States' previous largest bomb, the 22,000 lb (10,000 kg) M110 (T-14), the American-built version of the British Grand Slam. The T-12 was not a simple scale up of the M110, but incorporated modifications based on testing and calculations.
Grand Slam (bomb), a 10-tonne British "earthquake bomb" of World War II; Exercise Grand Slam, a 1952 NATO naval exercise in the Mediterranean Sea; Grand Slam Installation, a modification of the B-36 bomber to add nuclear weapons delivery capability; Operation Grand Slam, a Pakistan Army offensive plan during the Indo-Pakistani War of 1965
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 ...
Vulcans were configured for the Blue Steel stand-off bomb and 617 Squadron was the first to be declared operational with it in August 1962, [31] until in January 1970 the squadron's eight Vulcan B2 aircraft were re-equipped with the new strategic laydown bomb, WE.177B [32] which improved aircraft survivability by enabling aircraft to remain at ...