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Mark 90 Nuclear Bomb
The Mark 90 nuclear bomb, given the nickname "Betty", was a cold war nuclear depth charge, developed by the United States in 1952. It had a length of , a diameter of , and a weight of , and it carried a Mark 7 nuclear warhead with a yield of 32 kilotons. Its purpose was to serve as an anti-submarine weapon for the United States Navy. A test of the Mark 90 was conducted in 1955, as Operation Wigwam. All units were withdrawn from service by 1960. Accident On September 25, 1959, a United States Navy Martin P5M-2 Marlin (BuNo ''135540'', SG tailcode, '6', of VP-50) was patrolling out of NAS Whidbey Island when it was forced to ditch in the Pacific Ocean, about west of the Washington-Oregon border. A Mark 90 depth charge casing was lost and never recovered, but it was not fitted with an active warhead. The ten crew members were rescued by the US Coast Guard, after ten hours in a raft. The press was not notified at the time.Gibson, James N. ''Nuclear Weapons of the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wigwam
A wigwam, wickiup, wetu (Wampanoag), or wiigiwaam (Ojibwe, in syllabics: ) is a semi-permanent domed dwelling formerly used by certain Native American tribes and First Nations people and still used for ceremonial events. The term ''wickiup'' is generally used to refer to these kinds of dwellings in the Southwestern United States and Western United States and Northwest Alberta, Canada, while ''wigwam'' is usually applied to these structures in the Northeastern United States as well as Ontario and Quebec in central Canada. The names can refer to many distinct types of Indigenous structures regardless of location or cultural group. The wigwam is not to be confused with the Native Plains tipi, which has a different construction, structure, and use. Structure The domed, round shelter was used by numerous northeastern Indigenous tribes. The curved surfaces make it an ideal shelter for all kinds of conditions. Indigenous peoples in the Great Lakes–St. Lawrence Lowlands resid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAS Whidbey Island
Naval Air Station Whidbey Island (NASWI) is a naval air station of the United States Navy located on two pieces of land near Oak Harbor, on Whidbey Island, in Island County, Washington. The main portion of the base, Ault Field, is about three miles north of Oak Harbor. The other section, called the Seaplane Base for the PBY Catalina flying boats once based there, holds most of the island's Navy housing as well as the air station's main Navy Exchange and DeCA Commissary. The NASWI commanding officer also has command of a satellite airfield, Naval Outlying Landing Field (NOLF) Coupeville, on central Whidbey Island at , roughly nine miles south of Ault Field. Primarily used for Field Carrier Landing Practice (FCLP) by carrier-based jets, this field has no permanently assigned personnel. NASWI supports the MH-60S Seahawk helicopter and the EA-18G Growler, P-8 Poseidon, EP-3E ARIES, and C-40 Clipper fixed-wing aircraft. History 1940s On 17 January 1941, almost 11 month ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War Anti-submarine Weapons Of The United States
Cold is the presence of low temperature, especially in the atmosphere. In common usage, cold is often a subjective perception. A lower bound to temperature is absolute zero, defined as 0.00K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to on the Celsius scale, on the Fahrenheit scale, and on the Rankine scale. Since temperature relates to the thermal energy held by an object or a sample of matter, which is the kinetic energy of the random motion of the particle constituents of matter, an object will have less thermal energy when it is colder and more when it is hotter. If it were possible to cool a system to absolute zero, all motion of the particles in a sample of matter would cease and they would be at complete rest in the classical sense. The object could be described as having zero thermal energy. Microscopically in the description of quantum mechanics, however, matter still has zero-point energy even at absolute zero, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Accidents And Incidents Involving Military Aircraft (1955–1959)
This is a list of notable accidents and incidents involving military aircraft grouped by the year in which the accident or incident occurred. Not all of the aircraft were in operation at the time. Combat losses are not included except for a very few cases denoted by singular circumstances. March 9, 1955 William Edward McLaughlin crashed fighter jet while taking off an aircraft carrier off the coast of California. Aircraft terminology Information on aircraft gives the type, and if available, the serial number of the operator in italics, the construction number (c/n), also known as the manufacturer's serial number, exterior codes in apostrophes, nicknames (if any) in quotation marks, flight call sign in italics, and operating units. 1955 ;1955 :On its 205th flight, the first prototype Cessna XT-37-CE, ''54–716'', c/n 40001, first flown 12 October 1954, becomes uncontrollable during spin tests and crashes in Kansas, Cessna test pilot Robert S. "Bob" Hagan ejecting successfully ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Coast Guard
The United States Coast Guard (USCG) is the maritime security, search and rescue, and maritime law enforcement, law enforcement military branch, service branch of the United States Armed Forces and one of the country's eight Uniformed services of the United States, uniformed services. The service is a maritime, military, multi-mission service unique among the United States military branches for having a maritime law enforcement mission with jurisdiction in both domestic and international waters and a Federal government of the United States, federal regulatory agency mission as part of its duties. It is the largest and most powerful coast guard in the world, rivaling the capabilities and size of most Navy, navies. The U.S. Coast Guard is a Humanitarianism, humanitarian and security service. It protects the United States' borders and economic and security interests abroad; and defends its sovereignty by safeguarding sea lines of communication and commerce across vast territorial w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warhead
A warhead is the forward section of a device that contains the explosive agent or toxic (biological, chemical, or nuclear) material that is delivered by a missile, rocket, torpedo, or bomb. Classification Types of warheads include: * Explosive: An explosive charge is used to disintegrate the target, and damage surrounding areas with a blast wave. ** Conventional: Chemicals such as gunpowder and high explosives store significant energy within their molecular bonds. This energy can be released quickly by a trigger, such as an electric spark. Thermobaric weapons enhance the blast effect by utilizing the surrounding atmosphere in their explosive reactions. *** Blast: A strong shock wave is provided by the detonation of the explosive. *** Fragmentation: Metal fragments are projected at high velocity to cause damage or injury. *** Continuous rod: Metal bars welded on their ends form a compact cylinder of interconnected rods, which is violently expanded into a contiguous zig- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregon
Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada. Oregon has been home to many indigenous nations for thousands of years. The first European traders, explorers, and settlers began exploring what is now Oregon's Pacific coast in the early-mid 16th century. As early as 1564, the Spanish began sending vessels northeast from the Philippines, riding the Kuroshio Current in a sweeping circular route across the northern part of the Pacific. In 1592, Juan de Fuca undertook detailed mapping and studies of ocean currents in the Pacific Northwest, including the Oregon coast as well as the strait now bearing his name. Spanish ships – 250 in as many years – would typically not land before reaching Cape Mendoci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (U
Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on Washington, D.C. * George Washington (1732–1799), the first president of the United States Washington may also refer to: Places England * Washington, Tyne and Wear, a town in the City of Sunderland metropolitan borough ** Washington Old Hall, ancestral home of the family of George Washington * Washington, West Sussex, a village and civil parish Greenland * Cape Washington, Greenland * Washington Land Philippines *New Washington, Aklan, a municipality *Washington, a barangay in Catarman, Northern Samar *Washington, a barangay in Escalante, Negros Occidental *Washington, a barangay in San Jacinto, Masbate *Washington, a barangay in Surigao City United States * Washington, Wisconsin (other) * Fort Washington (disamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VP-50
VP-50 was a long-lived Patrol Squadron of the U.S. Navy, having held that designation for 39 years from 1953 to 1992. Its nickname was the ''Blue Dragons''. Originally established as VP-917 on 18 July 1946, redesignated Medium Patrol Squadron (Landplane) VP-ML-67 on 15 November 1946, redesignated VP-892 in February 1950, redesignated VP-50 on 4 February 1953 and disestablished on 30 June 1992. Operational history *18 July 1946: VP-917 was established at NAS Sand Point, near Seattle. The squadron came under the operational control of FAW-14 and administrative control of the Naval Air Reserve Training Command (NARTC). The squadron was one of 21 naval reserve squadrons established after the war to accommodate the large number of aircrews recently released from active duty and utilize the enormous stocks of aircraft in the inventory. The squadron flew the PBY-5A/6A Catalina seaplane and the PV-2 Harpoon landplane. *15 November 1946: All patrol squadrons were redesignated. Reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany and Imperial Japan in 1945. Aside from the nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, espionage, far-reaching embargoes, rivalry at sports events, and technological competitions such as the Space Race. The Western Bloc was led by the United States as well as a number of othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin P5M Marlin
The Martin P5M Marlin (P-5 Marlin after 1962), built by the Glenn L. Martin Company of Middle River, Maryland, was a twin piston-engined flying boat that entered service in 1951, and served into the late 1960s with the United States Navy performing naval patrols. It also served with the United States Coast Guard and the French Navy. 285 were produced. Development Built as a successor to the PBM Mariner, it had better engines, an improved hull, and a single vertical fin tail. The XP5M Marlin prototypes were based on the last PBM-5 Mariners, the company designation being Model 237. The type was heavily improved, again leading to the P5M-2 (Model 237B), which was redesignated SP-5B. A number of P5M-1 models were also used for training, designated TP-5A (after 1962). Design The Marlin was designed as a gull-winged aircraft to place the engines and propellers high above the spray. Power was provided by two Wright R-3350 radial engines. The rear hull did not lift sharply from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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