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Broken Arrow Incident
The United States Armed Forces uses a number of terms to define the magnitude and extent of nuclear and radiation accidents and incidents in order to reduce the time taken to report the type of incident, thus streamlining the radio communications in the wake of the event. Origin United States Department of Defense directive 5230.16, ''Nuclear Accident and Incident Public Affairs (PA) Guidance'', Chairman Joint Chiefs of Staff Manual 3150.03B ''Joint Reporting Structure Event and Incident Reporting'', and the United States Air Force Operation Reporting System, as set out in Air Force Instruction 10-206 detail a number of terms for reporting nuclear incidents internally and externally (including in press releases). They are used by the United States of America, and are neither NATO nor global standards. Terminology Pinnacle ''Pinnacle'' is a Chairman of the Joint Chiefs of Staff OPREP-3 (Operational Event/Incident Report) reporting flagword used in the United States National Comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Armed Forces
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is the commander-in-chief of the armed forces and forms military policy with the Department of Defense (DoD) and Department of Homeland Security (DHS), both federal executive departments, acting as the principal organs by which military policy is carried out. All six armed services are among the eight uniformed services of the United States. From their inception during the American Revolutionary War, the U.S. Armed Forces have played a decisive role in the history of the United States. They helped forge a sense of national unity and identity through victories in the First Barbary War and the Second Barbary War. They played a critical role in the American Civil War, keeping the Confederacy from seceding from the republic and preserving the uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1961 Yuba City B-52 Crash
On 14 March 1961 an aircraft accident occurred near Yuba City, California. A United States Air Force Boeing B-52 Stratofortress, B-52F-70-BW Stratofortress bomber, AF Serial No. ''57-0166'', c/n 464155, carrying two nuclear weapons departed from Mather Air Force Base near Sacramento, California, Sacramento. According to the official Air Force report, the aircraft experienced an uncontrolled decompression that required it to descend to in order to lower the cabin pressurization, cabin altitude. Increased fuel consumption caused by having to fly at lower altitude, combined with the inability to rendezvous with a tanker in time caused the aircraft to run out of fuel. The aircrew ejected safely, and then the unmanned aircraft crashed west of Yuba City, tearing the nuclear weapons from the aircraft on impact. The weapons did not detonate, as their safety devices worked properly. A fireman was killed and several others injured in a road accident while en route to the accident scene. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Military Nuclear Accidents
This article lists notable military accidents involving nuclear material. Civilian accidents are listed at List of civilian nuclear accidents. For a general discussion of both civilian and military accidents, see nuclear and radiation accidents. For other lists, see Lists of nuclear disasters and radioactive incidents. Scope of this article In listing military nuclear accidents, the following criteria have been adopted: # There must be well-attested and substantial health risks associated with nuclear materials. # To qualify as "military", the nuclear operation/material must be principally for military purposes. # To qualify as "accident", the damage should not be intentional, unlike in nuclear warfare. This list may be incomplete due to military secrecy. 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s See also *1983 Soviet nuclear false alarm incident *International Nuclear Event Scale *List of accidents and incidents involving military aircraft *List of civi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lists Of Nuclear Disasters And Radioactive Incidents
These are lists of nuclear disasters and radioactive incidents. Main lists * List of attacks on nuclear plants * List of Chernobyl-related articles * List of civilian nuclear accidents * List of civilian radiation accidents * List of crimes involving radioactive substances * List of criticality accidents and incidents * List of nuclear meltdown accidents * List of milestone nuclear explosions * List of military nuclear accidents * List of orphan source incidents * List of nuclear and radiation accidents and incidents * List of nuclear and radiation accidents by death toll * List of articles about the Three Mile Island accident Lists by country * List of nuclear power accidents by country * List of nuclear and radiation fatalities by country Individual disasters, incidents and sites * 2019 Radiation release during explosion and fire at Russian nuclear missile test site * 2017 Airborne radioactivity increase in Europe in autumn 2017 * 2011 Fukushima Daiichi nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Mile Island Accident
The Three Mile Island accident was a partial meltdown of the Three Mile Island, Unit 2 (TMI-2) reactor in Pennsylvania, United States. It began at 4 a.m. on March 28, 1979. It is the most significant accident in U.S. commercial nuclear power plant history. On the seven-point International Nuclear Event Scale, it is rated Level 5 – Accident with Wider Consequences. The accident began with failures in the non-nuclear secondary system followed by a stuck-open pilot-operated relief valve (PORV) in the primary system that allowed large amounts of nuclear reactor coolant to escape. The mechanical failures were compounded by the initial failure of plant operators to recognize the situation as a loss-of-coolant accident (LOCA). The failure of operators is attributed to the out-of-the-loop performance problem. TMI training and procedures left operators and management ill-prepared for the deteriorating situation. During the event these inadequacies were compounded by design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Reactor Technology
A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat from nuclear fission is passed to a working fluid (water or gas), which in turn runs through steam turbines. These either drive a ship's propellers or turn electrical generators' shafts. Nuclear generated steam in principle can be used for industrial process heat or for district heating. Some reactors are used to produce isotopes for medical and industrial use, or for production of weapons-grade plutonium. , the International Atomic Energy Agency reports there are 422 nuclear power reactors and 223 nuclear research reactors in operation around the world. In the early era of nuclear reactors (1940s), a reactor was known as a nuclear pile or atomic pile (so-called because the graphite moderator blocks of the first reactor were placed into a tall pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Warfare
Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a long-lasting radiological result. A major nuclear exchange would likely have long-term effects, primarily from the fallout released, and could also lead to secondary effects, such as " nuclear winter", nuclear famine and societal collapse. A global thermonuclear war with Cold War-era stockpiles, or even with the current smaller stockpiles, may lead to various scenarios including the extinction of the human race. To date, the only use of nuclear weapons in armed conflict occurred in 1945 with the American atomic bombings of Hiroshima and Nagasaki. On August 6, 1945, a uranium gun-type device (code name "Little Boy") was detonated over the Japanese city of Hiroshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Threat Reduction Agency
The Defense Threat Reduction Agency (DTRA) is a combat support agency within the United States Department of Defense (DoD) for countering weapons of mass destruction (WMD; chemical, biological, radiological, nuclear, and high explosives). According to the agency's Strategic Plan for Fiscal Years 2018 to 2022, the DTRA mission "enables DoD and the U.S. Government to prepare for and combat weapons of mass destruction and improvised threats and to ensure nuclear deterrence." The agency is headquartered in Fort Belvoir, Virginia. Organizational history DTRA was officially established on October 1, 1998, as a result of the 1997 Defense Reform Initiative, by consolidating several DoD organizations, including the Defense Special Weapons Agency (successor to the Defense Nuclear Agency) and the On-Site Inspection Agency. The Defense Technology Security Administration and the Nunn–Lugar Cooperative Threat Reduction program office in the Office of the Secretary of Defense were also inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1980 Damascus Titan Missile Explosion
The Damascus Titan missile explosion (also called the Damascus accident) was a 1980 U.S. nuclear weapons incident involving a Titan II Intercontinental Ballistic Missile (ICBM). The incident occurred on September 18–19, 1980, at Missile Complex 374-7 in rural Arkansas when a U.S. Air Force LGM-25C Titan II ICBM loaded with a 9 megaton W-53 Nuclear Warhead had a liquid fuel explosion inside its silo. The incident began with a fuel leak at on September 18, and culminated with the explosion at around on September 19, ejecting the warhead from its silo. The warhead landed a short distance away and no radioactive material was lost. Launch complex Launch Complex 374-7 was located in Bradley Township, Van Buren County farmland just 3.3 miles (5.3 km) NNE of Damascus, and approximately north of Little Rock. The Strategic Air Command facility of Little Rock Air Force Base was one of eighteen silos in the command of the 308th Strategic Missile Wing (308th SMW), spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1968 Thule Air Base B-52 Crash
On 21 January 1968, an aircraft accident, sometimes known as the Thule affair or Thule accident (; da, Thuleulykken), involving a United States Air Force (USAF) B-52 bomber occurred near Thule Air Base in the Danish territory of Greenland. The aircraft was carrying four B28FI thermonuclear bombs on a Cold War " Chrome Dome" alert mission over Baffin Bay when a cabin fire forced the crew to abandon the aircraft before they could carry out an emergency landing at Thule Air Base. Six crew members ejected safely, but one who did not have an ejection seat was killed while trying to bail out. The bomber crashed onto sea ice in North Star Bay, Greenland, causing the conventional explosives aboard to detonate and the nuclear payload to rupture and disperse, resulting in radioactive contamination of the area. The United States and Denmark launched an intensive clean-up and recovery operation, but the secondary stage of one of the nuclear weapons could not be accounted for after the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1966 Palomares B-52 Crash
The 1966 Palomares B-52 crash, also called the Palomares incident, occurred on 17 January 1966, when a B-52G bomber of the United States Air Force's Strategic Air Command collided with a KC-135 tanker during mid-air refueling at over the Mediterranean Sea, off the coast of Spain. The KC-135 was destroyed when its fuel load ignited, killing all four crew members. The B-52G broke apart, killing three of the seven crew members aboard. At the time of the accident, the B-52G was carrying four B28FI Mod 2 Y1 thermonuclear (hydrogen) bombs, all of which fell to the surface. Three were found on land near the small fishing village of Palomares in the municipality of Cuevas del Almanzora, Almería, Spain. The non-nuclear explosives in two of the weapons detonated upon impact with the ground, resulting in the contamination of a area with radioactive plutonium. The fourth, which fell into the Mediterranean Sea, was recovered intact after a search lasting two and a half months. Acci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1965 Philippine Sea A-4 Incident
The 1965 Philippine Sea A-4 crash was a United States military nuclear incident terminology#Broken Arrow, Broken Arrow incident in which a United States Navy Douglas A-4E Skyhawk attack aircraft carrying a nuclear weapon fell into the sea off Japan from the aircraft carrier . The aircraft, pilot and weapon were never recovered. The accident On 5 December 1965, 31 days after ''Ticonderoga''s departure from U.S. Naval Base Subic Bay in the Philippines, the attack jet fell over the side during a training exercise while being rolled from the number 2 hangar bay to the number 2 elevator. The pilot, Lieutenant (junior grade) Douglas M. Webster; the aircraft, Douglas A-4E BuNo ''151022'' of VA-56 (U.S. Navy), VA-56; and the B43 nuclear bomb were never recovered from the depth. The accident was said to occur from Kikai Island, Kagoshima Prefecture, Japan. ''Ticonderoga'' had aboard Carrier Air Wing Five during this cruise, with two squadrons of Skyhawks. The lost aircraft was part of V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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