T12

For other uses, see T12 (disambiguation)}}}.

T-12 shell at the U.S. Army Ordnance Museum, Aberdeen Proving Ground, Aberdeen, Maryland.

The T-12 demolition bomb was a weapon produced by the United States designed to create an "earthquake effect." It achieved this by having an extremely thick nose section, which was supposed to penetrate deeply into the earth (earth penetrating weapons are often referred to as EPW). It was designed to attack targets invulnerable to conventional "soft" bombs, such as bunkers and viaducts.

The T-12 was a further development of the concept initiated with the United Kingdom's Tallboy and Grand Slam weapons: a hardened, highly aerodynamic bomb of the greatest possible weight designed to be dropped from the highest possible altitude in order to destroy hardened targets. The T-12 weighed 44,000 lb (20 tonnes), which was twice the size of the US previous largest bomb, the American built version of the British Grand Slam, the Bomb, GP, 22,000-lb, M110 (T-14). Only one plane, the Convair B-36 Peacemaker could actually carry the T-12 weapon at the time when it was designed. The T-12 was not a simple scale up of the M110 but incorporated modifications based on testing and calculations.

It is also important to clarify a further nickname imparted to this weapon — the Grand Slam bomb, which more correctly refers to the T-12's 22,000 lb (10,000 kg) predecessor. Additionally, "Grand Slam" was the name of a project to modify B-36 bombers to carry nuclear bombs, creating further confusion.

Weapons of comparable size to the T-12, such as the BLU-82 and Massive Ordnance Air Blast bombs, remain in the US inventory of superbombs, but their utility is limited outside the realm of terror weapons and demolition. They are not hardened and so lack the hard target destruction capability of the T-12 and its cousins. Precision-guided munitions (or "smart bombs") have mostly removed the need for gigantic charges in air-dropped bombs.

External links

[Very Heavy Conventional Aerial Bombs]

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T12

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