BLU-82

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BLU-82B/C-130
A 15,000 lb BLU-82/B on display at the National Museum of the United States Air Force
TypeAir to surface conventional bomb[1] (parachute retarded)
Place of originUnited States
Service history
Wars
War in Afghanistan
Production history
No. built225[1]
Specifications
Mass15,000 lb (6,800 kg)[1]
Length141.6 in (360 cm)[1]
Diameter56 in (140 cm)[1]

FillingGSX Slurry
Filling weight12,600 lb (5,700 kg)[1]
An MC-130E from the 711th Special Operations Squadron, 919th Special Operations Wing, drops the last operational BLU-82 bomb at the Utah Test and Training Range on July 15, 2008.
Detonation of the last BLU-82

The BLU-82B/C-130 weapon system, known under program "Commando Vault" and nicknamed "

Afghanistan. The BLU-82 was retired in 2008 and replaced with the more powerful GBU-43/B MOAB
.

Overview

The designation "BLU" stands for Bomb Live Unit, as opposed to "BDU" (Bomb Dummy Units) used for practice. Originally designed to create an instant clearing in the jungles of Vietnam, the BLU-82B/C-130 was test-dropped there from a

Massive Ordnance Penetrator
.

Specifications

The BLU-82 uses

The warhead contains 12,600 pounds (5,700 kg) of low-cost GSX slurry (ammonium nitrate, aluminum powder and polystyrene).

The Daisy Cutter has sometimes been incorrectly reported as a

oxidizers from the oxygen in the air. FAEs generally run between 500 and 2,000 pounds (225 and 900 kg). Making an FAE the size of a Daisy Cutter would be difficult because the correct uniform mixture of the flammable agent with the ambient air would be difficult to maintain if the agent were so widely dispersed. A conventional explosive
is much more reliable in that regard, particularly if there is significant wind or thermal gradient.

The BLU-82 produces an overpressure of 1,000 pounds per square inch (6,900 kPa) near ground zero, tapering off as distance increases. It is detonated just above ground by a 38-inch (970 mm) fuze extender. This results in a maximum destruction at ground level without digging a crater.

Guidance

This system depends upon the accurate positioning of the aircraft by either a fixed ground radar or on-board navigation equipment. The ground radar controller, or aircrew navigator if applicable, is responsible for positioning the aircraft prior to final countdown and release. Primary aircrew considerations include accurate ballistic and wind computations provided by the navigator, and precision instrument flying with strict adherence to controller instructions. Due to its extremely powerful blast effects, the minimum safe altitude for releasing this weapon is 6,000 feet (1,800 m) above ground level (AGL).

Operations

The BLU-82 was originally designed to clear helicopter landing zones and artillery emplacements in Vietnam.[4] The first use of a BLU-82 occurred on 22 March 1970, when one was dropped north of Long Tieng, Laos during Campaign 139.[5]

During

NVA and Pathet Lao forces in Laos. They were dropped by U.S. C-130 aircraft not only to clear landing zones, but also to strike against specific targets such as warehouses, vehicle parks, and enemy troop concentrations.[6]

South Vietnamese

VNAF aircraft dropped BLU-82 bombs on NVA positions in desperation to support ARVN troops in the Battle of Xuân Lộc in the last days of the Vietnam War. During the Mayaguez incident, a Lockheed MC-130 dropped one BLU-82 to assist U.S. Marine forces attempting to extract themselves from Koh Tang island.[7]

Eleven BLU-82Bs were palletized and dropped in five night missions during the 1991 Gulf War,[8] all from Special Operations MC-130 Combat Talons.[9] The initial drop tested the ability of the bomb to clear or breach mine fields;[10] however, no reliable assessments of mine clearing effectiveness are publicly available. Later, bombs were dropped as much for their psychological effect as for their anti-personnel effects.[11] Due to the size of the conventional blast, a British SAS unit that witnessed the explosion mistakenly assumed the U.S. had used a nuclear weapon and radioed back to their headquarters exclaiming, "Sir, the blokes have just nuked Kuwait!".[12]

The U.S. Air Force dropped several BLU-82s during the campaign to destroy Taliban and al-Qaeda bases in Afghanistan to attack and demoralize personnel and to destroy cave complexes.[9] American forces began using the bomb in November 2001[13] and again a month later during the Battle of Tora Bora.[14] On 15 July 2008, airmen from the Duke Field 711th Special Operations Squadron, 919th Special Operations Wing dropped the last operational BLU-82 at the Utah Test and Training Range.[15]

See also

References

  1. ^ . Retrieved 13 April 2017.
  2. ^ London, U.K.: Aeroplane, Fricker, John, Crosswind, October 2006, Volume 34, Number 10, No. 402, page 120.
  3. ^ Independent Online, Taliban downs US chopper, killing four, November 6, 2001
  4. ^ "Bomb Live Unit (BLU-82/B)".
  5. , p. 256.
  6. ^ Hinh, Nguyen Duy. "Lam Son 719" (PDF). page 133. U.S. Army Center of Military History. Archived (PDF) from the original on October 18, 2016. Retrieved 15 October 2016.
  7. ^ Grandolini, Albert. "Cambodia, Part Two; 1954–1999". ACIG.org. Retrieved 6 February 2013.
  8. ^ "C-130s drop 15,000-pound bombs on Iraqis WAR IN THE GULF". tribunedigital-baltimoresun. February 12, 1991. Retrieved 2017-09-08.
  9. ^ a b Pike, John. "BLU-82B." Federation of American Scientists, 24 March 2004.
  10. ^ Craib, J. A. "Occasional Paper Series 1: Survey of Mine Clearance Technology." BARIC (Consultants) Ltd., September 1994.
  11. ^ Wolfowitz, Paul; Stufflebeem, John D. "September 11, 2001: Attack on America Archived September 7, 2006, at the Wayback Machine." Department of Defense News Briefing, 10 December 2001.
  12. ^ "Secret Warriors". Newsweek. 1991-06-16. Retrieved 2017-09-08.
  13. ^ U.S. using mammoth 'Daisy Cutter' bomb
  14. ^ Daisy-cutter deployed after bin Laden sighting
  15. ^ Nichols, Patrick (Captain, 919th Operations Group). "Duke Field Airmen Drop Last 15,000-Pound Bomb." Air Force Link (U.S. Air Force), 21 July 2008. Retrieved 18 March 2016

External links

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