All rights reserved. Al Weimorts (à droite), concepteur de la bombe explosive GBU-43/B Massive Ordnance, et Joseph Fellenz, chef de modèle principal, regardent le prototype avant qu'il ne soit peint et testé. [4] American forces began using the bomb in November 2001[7] and again a month later during the Battle of Tora Bora. La T-12 Cloudmaker (en), développée entre 1944 et 1948, détient le record avec une masse de 19,8 tonnes[5]. Sa puissance de destruction équivaut à celui d'une vingtaine de missiles de croisière Tomahawk. The concept for the fuse is attributed to an Air America employee who grasped the idea during a night of drinking. [4] The initial drop tested the ability of the bomb to clear or breach mine fields;[5] however, no reliable assessments of mine clearing effectiveness are publicly available. Elle est guidée par GPS[1] et sa trajectoire de chute est contrôlée par une centrale inertielle[7]. 10: The Haunted Mixtape of the Vietnam War, Information about the device's operating system, Information about other identifiers assigned to the device, The IP address from which the device accesses a client's website or mobile application, Information about the user's activity on that device, including web pages and mobile apps visited or used, Information about the geographic location of the device when it accesses a website or mobile application. When it explodes, it generates a massive pressure wave. It is one of the largest conventional weapons ever to be used, outweighed only by a few earth quake bombs, thermobaric bombs, and demolition (bunker buster) bombs.

Ordinarily, atmospheric pressure is about 100,000 pascals (the equivalent of 1kg of force applied to an area of one square cm ¿ or 14.2psi). RAF Museum: J.F.C.

The welded pipe versions had several adverse effects, such as vibration, pipe weld separation or breakage while in flight, and wind drag, due to impossibility of aligning the pipes correctly with the nose of the weapon, so that phase of development eventually gave way to threaded steel water pipes screwed into the nose cavity of the bombs, leaving only the tail fuse for detonation. A thermobaric weapon, aerosol bomb, or vacuum bomb is a type of explosive that uses oxygen from the surrounding air to generate a high-temperature explosion. 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 (6,800 kg) conventional bomb, delivered from either a C-130 or an MC-130 transport aircraft. Chaque exemplaire coûte 170 000 dollars américains[10], auxquels s'ajoutent les 300 millions de dollars de développement de l'arme, bien loin derrière d'autres programmes du Pentagone, comme le programme F-35, au coût exorbitant de quatre cents milliards de dollars[11]. This system depends upon the accurate positioning of the aircraft by either a fixed ground radar or on-board navigation equipment. 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 (6,800 kg) conventional bomb, delivered from either a C-130 or an MC-130 transport aircraft. It is detonated just above ground by a 38-inch (965 mm) fuze extender. The bombing allegedly took place in February 27, the last day of hostilities. [8] 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.[9]. [3] It followed the Iraqi invasion into neighbouring Kuwait over alleged stealing of oil in border territories. Daisy cutter (fuse), a type of fuse designed to detonate an aerial bomb at or above ground level BLU-82, a type of bomb nicknamed Daisy Cutter in Vietnam; In cricket, a ball that bounces multiple times before reaching the batsman; A seldom used term for a sharply struck ground ball in baseball, used mostly in Vintage base ball

En conséquence, l'effet par fragmentation est faible[7]. FAE devices consist of a flammable liquid and a dispersing mechanism, and take their oxidizers from the oxygen in the air. The bomb is 30 feet long and 40.5 inches in diameter. The effects are felt over an area typically reported to be the size of several football pitches. Elle fut utilisée plus tard, pendant la guerre du Golfe pour détruire des champs de mines, puis pendant la guerre d'Afghanistan. After the concept proved itself useful it was made famous by being used for the largest conventional bomb in the U.S. military's arsenal at the time, the BLU-82. Daisy Cutter Bomb Vietnam War. A daisy cutter is a type of fuse designed to detonate an aerial bomb at or above ground level. La dernière modification de cette page a été faite le 12 septembre 2020 à 14:21. Jusqu'en 2017, seuls des C-130 étaient employés. 27:24. According to the US Air Force, 11 of these were dropped on Iraq during the Gulf War. The bomb descends under a stabilising parachute and is detonated just above the ground by a 38-in (97 cm) fuse, which sticks out of its nose. D'après des sources officielles afghanes relayées par l'armée américaine, cette frappe aérienne sur Nangarhâr (en) aurait tué 94 militants de l'EI-K dont quatre dirigeants[14]. 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. The type depicted in the leaflets, and also used in Afghanistan, is the BLU-82B Commando Vault or Big Blue 82, also known as the Daisy Cutter. may use Georgian air bases to strike at Iran’. MOAB is the most powerful conventional bomb in America's arsenal, and is an evolutionary follow-un to the 15,000lb BLU-82 "Daisy Cutters… A bomb with a conventional fuse will often be driven deeply into the ground by the force of its impact, limiting the range of its blast. It bursts about 6 feet (1.8 meters) above the ground.

The attack supposedly occurred around midnight local time. Up next Remembering The Vietnam War: Combat & After - Duration: 27:24. An American war veteran has claimed that the U.S. dropped a nuclear bomb during the last days of the first Gulf War in Iraq in 1991. Now BLU-82 is not used by the U.S. military, with the last one dropped in July 2008 at a test range. En septembre 2007, la Russie teste le « père de toutes les bombes », bombe thermobarique présentée, selon certaines affirmations, comme étant quatre fois plus puissante que la MOAB[15],[16]. JASSM To Fly With New Explosive Formulation, Ghost Tape No. The BBC is not responsible for the content of external internet sites, Health and Safety Executive: Ammonium nitrate, Canadian Centre for Occupational Health and Safety: Aluminium powder. The BLU-82 uses ammonium nitrate and aluminum (cf. This website uses cookies. In a Daisy Cutter explosion, the pressure reaches about 7,000,000Pa (70kg/sq cm - 1,000psi) at the centre. WDSE WRPT - PBS 72,180 views. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. It is currently the largest conventional bomb (as opposed to a nuclear bomb) in the U.S. arsenal. © Autonomous Nonprofit Organization “TV-Novosti”, 2005–2020. La MOAB est dérivée de la Daisy Cutter (BLU-82/B), une bombe d'environ sept tonnes utilisant un mélange nitraté, développée au départ en vue de dégager des aires d'atterrissage dans la jungle pour les hélicoptères, par le seul souffle de son explosion (d'où le surnom de Daisy Cutter, en français « faucheuse de marguerites », donné par des G.I.s à cette bombe). Later it was used in Afghanistan as an anti-personnel weapon and as an intimidation weapon because of its very large lethal radius (variously reported as 300 to 900 feet/100 to 300 meters) combined with a visible flash and audible sound at long distances. The MOAB is not the largest bomb ever created.

A bomb with a daisy-cutter fuse will detonate before it has a chance to penetrate the ground, allowing its energy to spread over a larger area. ", People of the American Civil War by state, Articles incorporating text from Wikipedia, Cold War aerial bombs of the United States, National Museum of the United States Air Force, 711th Special Operations Squadron, 919th Special Operations Wing, http://www.acig.info/CMS/index.php?option=com_content&task=view&id=234&Itemid=47, Occasional Paper Series 1: Survey of Mine Clearance Technology, Daisy-cutter deployed after bin Laden sighting, Duke Field Airmen Drop Last 15,000-Pound Bomb, https://military.wikia.org/wiki/BLU-82?oldid=4272489. These weapons were used in the "shock and awe" phase of the Iraq War. La MOAB a été testée pour la première fois le 11 mars 2003[12]. They suggested a conventional bomb dropped on the day, like the BLU-82 Daisy Cutter, could have been recorded by seismologists. Coalition forces relied heavily on air strikes with precision weapons on Iraqi targets, thus avoiding direct ground combat. Some of these include the Grand Slam and T12 earthquake bombs of late World War II, and more currently, the Russian Air Force FOAB and USAF GBU-43/B Massive Ordnance Air Blast bomb, and the Massive Ordnance Penetrator. It is one of t… The designation "BLU" stands for Bomb Live Unit, as opposed to "BDU" (Bomb Dummy Units) used for practice. Weird & Wacky, Copyright © 2020 HowStuffWorks, a division of InfoSpace Holdings, LLC, a System1 Company. A total of 11 of these bombs were used during the Gulf War. [2] The blast is so horrific that one of the main reasons merely for threatening its use against an enemy is psychological. Cette bombe n'avait jamais été utilisée au combat avant avril 2017[3]. Wilkinson describes it as a "bomb that seemed to explode before it buried itself in the ground so that bits and pieces flew horizontally in all directions."[1]. There were 225 constructed. Some say the name derives from the blast pattern it leaves when viewed from above. L'arme conçue par l'ingénieur civil Albert L. Weimorts Jr. travaillant pour le Air Force Research Laboratory[9] a été construite à 17 exemplaires dans l'usine McAlester Army Ammunition Plant (en) à McAlester dans l'Oklahoma. 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. Étant donné sa taille et son poids imposant, seul un avion de transport peut la transporter et la larguer via la trappe arrière. A conventional explosive is much more reliable in that regard, particularly if there is significant wind or thermal gradient. You consent to our cookies if you continue to use our website. The operation ‘Desert Storm’, which the media widely referred to as the Gulf War, was a military operation of a 34 country coalition led by the U.S. against Iraq. La MOAB n'est pas la plus lourde bombe existante.