Massive Ordnance Penetrator
Encyclopedia
The Massive Ordnance Penetrator (MOP) GBU-57A/B is a project by the U.S. Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 to develop a massive, precision-guided
Precision-guided munition
A precision-guided munition is a guided munition intended to precisely hit a specific target, and to minimize damage to things other than the target....

, 30000 pounds (13,608 kg) "bunker buster
Bunker buster
A bunker buster is a bomb designed to penetrate hardened targets or targets buried deep underground.-Germany:Röchling shells were bunker-busting artillery shells, developed by German engineer August Cönders, based on the theory of increasing sectional density to improve penetration.They were tested...

" bomb
Bomb
A bomb is any of a range of explosive weapons that only rely on the exothermic reaction of an explosive material to provide an extremely sudden and violent release of energy...

. This is substantially larger than the deepest penetrating bunker buster previously available, the 5000 pounds (2,268 kg) GBU-28
GBU-28
The Guided Bomb Unit 28 is a 5,000 pound laser-guided "bunker busting" bomb nicknamed "Deep Throat" produced originally by the Watervliet Arsenal, Watervliet, New York. It was designed, manufactured, and deployed in less than three weeks due to an urgent need during Operation Desert Storm to...

.

Development

In 2002, Northrop Grumman
Northrop Grumman
Northrop Grumman Corporation is an American global aerospace and defense technology company formed by the 1994 purchase of Grumman by Northrop. The company was the fourth-largest defense contractor in the world as of 2010, and the largest builder of naval vessels. Northrop Grumman employs over...

 and Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

 were working on the development of a 30,000-lb (13,600 kg) earth-penetrating weapon, said to be known as "Big BLU
BLU-82
The BLU-82B/C-130 weapon system, known under program "Commando Vault" and nicknamed "daisy cutter" in Vietnam and in Afghanistan for its ability to flatten a forest into a helicopter landing zone, is a 15,000 pound conventional bomb, delivered from either a C-130 or an MC-130 transport aircraft....

", although funding and technical difficulties resulted in the development work being abandoned. Following the 2003 invasion of Iraq
2003 invasion of Iraq
The 2003 invasion of Iraq , was the start of the conflict known as the Iraq War, or Operation Iraqi Freedom, in which a combined force of troops from the United States, the United Kingdom, Australia and Poland invaded Iraq and toppled the regime of Saddam Hussein in 21 days of major combat operations...

, analysis of sites that had been targeted with bunker-buster bombs revealed poor penetration and inadequate levels of destruction. This renewed interest in the development of a super-large bunker-buster, and the MOP project was initiated.

The U.S. Air Force has no specific military
Military
A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

 requirement for an ultra-large bomb, but it does have a concept for a collection of massively sized penetrator and blast weapons, the so-called "Big BLU" collection, which includes the MOAB
Moab
Moab is the historical name for a mountainous strip of land in Jordan. The land lies alongside much of the eastern shore of the Dead Sea. The existence of the Kingdom of Moab is attested to by numerous archeological findings, most notably the Mesha Stele, which describes the Moabite victory over...

 (Massive Ordnance Air Burst) bomb. Development of the MOP is now underway at the Air Force Research Laboratory
Air Force Research Laboratory
The Air Force Research Laboratory is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of affordable aerospace warfighting technologies; planning and executing the Air Force science and...

, Munitions Directorate, Eglin Air Force Base
Eglin Air Force Base
Eglin Air Force Base is a United States Air Force base located approximately 3 miles southwest of Valparaiso, Florida in Okaloosa County....

, Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

. Design and testing work is also being performed by Boeing
Boeing
The Boeing Company is an American multinational aerospace and defense corporation, founded in 1916 by William E. Boeing in Seattle, Washington. Boeing has expanded over the years, merging with McDonnell Douglas in 1997. Boeing Corporate headquarters has been in Chicago, Illinois since 2001...

. It is intended that the bomb will be deployed on the B-2 bomber
B-2 Spirit
The Northrop Grumman B-2 Spirit is an American heavy bomber with low observable stealth technology designed to penetrate dense anti-aircraft defenses and deploy both conventional and nuclear weapons. The bomber has a crew of two and can drop up to eighty -class JDAM GPS-guided bombs, or sixteen ...

, and will be guided by the use of GPS
Global Positioning System
The Global Positioning System is a space-based global navigation satellite system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites...

.

Northrop Grumman announced a $2.5-million stealth-bomber refit contract on July 19, 2007. An undisclosed number of the U.S. Air Force's 20 B-2s will be able to carry two 14-metric-ton MOPs.

Global Strike Command
Global Strike Command
Air Force Global Strike Command is a major command of the United States Air Force outlined in a recent roadmap for the improvement of the United States' nuclear arsenal. It assumed responsibility for the nuclear-capable assets of Air Force Space Command on 1 December 2009 and the nuclear-capable...

 has indicated that one of the objectives for the Next-Generation Bomber is for it to carry a weapon with the effects of the Massive Ordnance Penetrator. This would either be with the same weapon or a smaller weapon that uses rocket power to reach sufficient speed to match the penetrating power of the larger weapon.

Specifications

  • Length: 20.5 feet (6.2 m)
  • Diameter: 31.5 inch (0.8001 m)
  • Weight: 30000 pound
  • Warhead: 5300 pound high explosive
  • Penetration:
    • 200 ft (61 m) of 5000 psi (34 MPa) reinforced concrete
      Reinforced concrete
      Reinforced concrete is concrete in which reinforcement bars , reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867. The term Ferro Concrete refers only to concrete that is...

    • 26 ft (7.9 m) of 10000 psi (69 MPa) reinforced concrete
      Reinforced concrete
      Reinforced concrete is concrete in which reinforcement bars , reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867. The term Ferro Concrete refers only to concrete that is...

    • 130 ft (40 m) of moderately hard rock

Program status

The initial explosive test of MOP took place on March 14, 2007 in a tunnel belonging to the Defense Threat Reduction Agency
Defense Threat Reduction Agency
The Defense Threat Reduction Agency is an agency within the United States Department of Defense and is the official Combat Support Agency for countering weapons of mass destruction . DTRA's main functions are threat reduction, threat control, combat support, and technology development...

 (DTRA) at the White Sands Missile Range
White Sands Missile Range
White Sands Missile Range is a rocket range of almost in parts of five counties in southern New Mexico. The largest military installation in the United States, WSMR includes the and the WSMR Otera Mesa bombing range...

, New Mexico.

On October 6, 2009, ABC News reported that the Pentagon had requested and obtained permission from the U.S. Congress to shift funding in order to accelerate the project. It was later announced by the U.S. military that "funding delays and enhancements to the planned test schedule "meant the bomb would not be deployable until December 2010, six months later than the original availability date.

The project has had at least one successful Flight Test MOP launch.

On 7th April 2011, the USAF ordered eight MOPs plus supporting equipment for $28 million.

On November 14, 2011, Bloomberg reported that the Air Force Global Strike Command started receiving the Massive Ordnance Penetrator and that the deliveries "will meet requirements for the current operational need".

Next-generation Penetrator Munition

On 25 June 2010, USAF Lt. Gen. Phillip Breedlove said that the Next-generation Penetrator Munition should be about a third the size of the Massive Ordnance Penetrator so it could be carried by affordable aircraft.

In December 2010, the USAF had a Broad Agency Announcement (BAA) for the Next Generation Penetrator (NGP).

See also

  • Earthquake bomb
  • Bunker buster
    Bunker buster
    A bunker buster is a bomb designed to penetrate hardened targets or targets buried deep underground.-Germany:Röchling shells were bunker-busting artillery shells, developed by German engineer August Cönders, based on the theory of increasing sectional density to improve penetration.They were tested...

  • Thermobaric weapon
    Thermobaric weapon
    A thermobaric weapon, which includes the type known as a "fuel-air bomb", is an explosive weapon that produces a blast wave of a significantly longer duration than those produced by condensed explosives. This is useful in military applications where its longer duration increases the numbers of...



Specific large bombs
  • Grand Slam bomb
    Grand Slam bomb
    The Grand Slam was a 22,000 lb earthquake bomb used by RAF Bomber Command against strategic targets during the Second World War.Known officially as the Bomb, Medium Capacity, 22,000 lb, it was a scaled up version of the Tallboy bomb and closer to the original size that the bombs' inventor,...

  • Tallboy bomb
    Tallboy bomb
    The Tallboy or Bomb, Medium Capacity, 12,000 lb, was an earthquake bomb developed by the British aeronautical engineer Barnes Wallis and deployed by the RAF in 1944...

  • T-12 Cloudmaker
  • BLU-82 Daisy Cutter bomb
    BLU-82
    The BLU-82B/C-130 weapon system, known under program "Commando Vault" and nicknamed "daisy cutter" in Vietnam and in Afghanistan for its ability to flatten a forest into a helicopter landing zone, is a 15,000 pound conventional bomb, delivered from either a C-130 or an MC-130 transport aircraft....

  • GBU-43/B Massive Ordnance Air Blast bomb
    GBU-43/B Massive Ordnance Air Blast bomb
    The GBU-43/B Massive Ordnance Air Blast bomb is a large-yield conventional bomb developed for the United States military by Albert L. Weimorts, Jr. At the time of development, it was touted as the most powerful non-nuclear weapon ever designed...

     (MOAB)
  • Father of All Bombs (FOAB)

External links

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