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The GBU-57A/B Massive Ordnance Penetrator (MOP) is a precision-guided, 30,000-pound (14,000 kg) "bunker buster" bomb used by the United States Air Force. [2] The GBU-57 (Guided Bomb Unit-57) is substantially larger than the deepest-penetrating bunker busters previously available, the 5,000-pound (2,300 kg) GBU-28 and GBU-37.
B43 nuclear bomb (1961–1990): laydown delivery and ground burst; B53 nuclear bomb (1962–1997): laydown delivery; B57 nuclear bomb (1963–1993): laydown delivery; B61 nuclear bomb (1968–present): laydown delivery and ground burst Mod 11 (1997–present): earth penetrating, laydown delivery, and ground burst; W61 for MGM-134 Midgetman ...
[9] [10] [11] This was the 1.2 kiloton Buster-Jangle Uncle, [12] which detonated 17 ft (5.2 m) beneath ground level. [10] The test was designed as a scaled-down investigation of the effects of a 23-kiloton ground-penetrating gun-type fission weapon that was then being considered for use as a cratering and bunker-buster weapon. [13]
Nukemap (stylised in all caps) is an interactive map using Mapbox [1] API and declassified nuclear weapons effects data, created by Alex Wellerstein, a historian of science at the Stevens Institute of Technology who studies the history of nuclear weapons.
It is stated to be able to penetrate 10–20 m of earth or 2 m of reinforced concrete. The bomb weighs 1,500 kg (3,300 lb), with 1,100 kg (2,400 lb) being the high explosive penetrating warhead. It is laser guided and has a reported strike accuracy of 7 m (23 ft) CEP. [12]
The newest variant is the Mod 11, deployed in 1997, which is a ground-penetrating bunker busting weapon. The Russian Continuity of Government facility at Kosvinsky Kamen, finished in early 1996, was designed to resist US earth-penetrating warheads and serves a similar role as the American Cheyenne Mountain Complex.
[25] [26] The weapon can be set to detonate above the ground or with a delay for deep penetration. [12] In a 2017 demonstration, the GLSDB engaged a moving target at a distance of 100 km (62 mi). The SDB and rocket motor separated at altitude and the bomb used a semi-active laser (SAL) seeker to track and engage the target. [27]
The bomb is designed to be delivered by a C-130 Hercules, primarily the MC-130E Combat Talon I or MC-130H Combat Talon II variants. The bomb's name and nickname were inspired by Iraqi president Saddam Hussein 's invocation of the "mother of all battles" ( Umm al-Ma'arik ) during the 1991 Gulf War .