The GBU-57A/B MOP (Massive Ordnance Penetrator) 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 .

2018年1月25日 · Also known as the Massive Ordnance Penetrator, the GBU-57 has just completed its fourth upgrade, and its inventory is being retrofitted, Air Force officials told Bloomberg.

2023年5月3日 · These photos are particularly interesting as they show a “Live” GBU-57: as opposed to the blue one, the yellow band around the nose is used to identify bombs with high-explosive filler ...

2018年1月25日 · Known officially as the Massive Ordnance Penetrator (MOP), the GBU-57 was designed to attack hardened concrete buildings, particularly those underground. The bomb is 20.5 feet long with a...

2019年4月16日 · Once released from the bat-winged bomber, the MOP is guided to targets by GPS and a pair of stubby fins. It was designed to attack deeply buried bunkers and tunnels and carries 5,300 pounds of explosives. GBU-57 was first tested in 2009. The modification provides for sustainment work.

2023年5月4日 · New images released by the U.S. Air Force provide what appears to be our best look yet at a live example of the service’s 30,000-pound class GBU-57/B Massive Ordnance Penetrator bunker buster, or MOP.

2025年2月6日 · A new "smart fuze" for the GBU-57/B Massive Ordnance Penetrator has been tested and an issue tied to the B-2 stealth bomber has been fixed.

2023年5月22日 · The U.S. Air Force on May 2 released rare images of the weapon, the GBU-57, known as the “Massive Ordnance Penetrator.” Then it took the photos down.

The GBU-57 MOP is a large, GPS-guided, penetrating weapon designed to attack hard and deeply buried targets (HDBTs) such as bunkers and tunnels. The GBU-57 warhead is intended to be more lethal than its predecessors, the GBU-28 and GBU-37.

2012年7月26日 · The GBU-57 Massive Ordnance Penetrator, or MOP, a massive 30,000-lb bomb that can destroy deeply buried bunkers, has been upgraded and ready to be carried by the U.S. Air Force B-52 and B-2...