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Mark 15 Nuclear Bomb
The Mark 15 nuclear bomb, or Mk-15, was a 1950s American thermonuclear bomb, the first relatively lightweight () thermonuclear bomb created by the United States. A total of 1,200 Mark 15 bombs were produced from 1955 to 1957. There were three production variants: Mod 1, Mod 2, and Mod 3. The design was in service from 1955 to 1965. Specifications All three models were generally physically similar; weight of around , diameter of , length of . Models The Mod 1 corresponds to the Castle Nectar test of the Zombie weapon prototype. This test had a yield of . The Mod 2 corresponds to the Redwing Cherokee nuclear test of the TX-15-X1 test model, and had a yield of . Redwing Cherokee was the first US thermonuclear bomb airdrop test. a [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk15
Mark XV or Mark 15 often refers to the 15th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark XV or Mark 15 can specifically refer to: In technology In military and weaponry *Mark 15 torpedo, 1930 US Navy weapon plagued with development problems in World War II * Supermarine Spitfire XV; a designation reserved for use with the Supermarine Seafire *Mark 15 nuclear bomb; 1950s American thermonuclear bomb * Mark 15 Phalanx CIWS; automated anti-missile gatling gun, entered US Navy service in 1980 * Mark 15, a variant of the 8-inch/55-caliber gun * MK 15, the US military designation for the McMillan TAC-50 Other uses * Mark 15 and Mark XV, the fifteenth chapter of the Gospel of Mark in the New Testament of the Christian Bible * International Watch Company IWC International Watch Co. AG, also known as IWC Schaffhausen, is a Swiss watch manufacturer located in Schaffhausen, Switzerland. Originally founded by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk15 Mod 2 Side-rear
Mark XV or Mark 15 often refers to the 15th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark XV or Mark 15 can specifically refer to: In technology In military and weaponry *Mark 15 torpedo, 1930 US Navy weapon plagued with development problems in World War II * Supermarine Spitfire XV; a designation reserved for use with the Supermarine Seafire *Mark 15 nuclear bomb; 1950s American thermonuclear bomb * Mark 15 Phalanx CIWS; automated anti-missile gatling gun, entered US Navy service in 1980 * Mark 15, a variant of the 8-inch/55-caliber gun * MK 15, the US military designation for the McMillan TAC-50 Other uses * Mark 15 and Mark XV, the fifteenth chapter of the Gospel of Mark in the New Testament of the Christian Bible * International Watch Company IWC International Watch Co. AG, also known as IWC Schaffhausen, is a Swiss watch manufacturer located in Schaffhausen, Switzerland. Originally founded by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk15 Bomb Side
Mark XV or Mark 15 often refers to the 15th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark XV or Mark 15 can specifically refer to: In technology In military and weaponry *Mark 15 torpedo, 1930 US Navy weapon plagued with development problems in World War II * Supermarine Spitfire XV; a designation reserved for use with the Supermarine Seafire *Mark 15 nuclear bomb; 1950s American thermonuclear bomb * Mark 15 Phalanx CIWS; automated anti-missile gatling gun, entered US Navy service in 1980 * Mark 15, a variant of the 8-inch/55-caliber gun * MK 15, the US military designation for the McMillan TAC-50 Other uses * Mark 15 and Mark XV, the fifteenth chapter of the Gospel of Mark in the New Testament of the Christian Bible * International Watch Company IWC International Watch Co. AG, also known as IWC Schaffhausen, is a Swiss watch manufacturer located in Schaffhausen, Switzerland. Originally founded by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermonuclear Bomb
A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lower mass, or a combination of these benefits. Characteristics of nuclear fusion reactions make possible the use of non-fissile depleted uranium as the weapon's main fuel, thus allowing more efficient use of scarce fissile material such as uranium-235 () or plutonium-239 (). The first full-scale thermonuclear test was carried out by the United States in 1952; the concept has since been employed by most of the world's nuclear powers in the design of their weapons. Modern fusion weapons consist essentially of two main components: a nuclear fission primary stage (fueled by or ) and a separate nuclear fusion secondary stage containing thermonuclear fuel: the heavy hydrogen isotopes deuterium and tritium, or in modern weapons lithium deuteride. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Castle
Operation Castle was a United States series of high-yield (high-energy) nuclear tests by Joint Task Force 7 (JTF-7) at Bikini Atoll beginning in March 1954. It followed ''Operation Upshot–Knothole'' and preceded ''Operation Teapot''. Conducted as a joint venture between the Atomic Energy Commission (AEC) and the Department of Defense (DoD), the ultimate objective of the operation was to test designs for an aircraft-deliverable thermonuclear weapon. All the devices tested, which ranged in weight from , were built to be dropped from aircraft. However, ballistic casings, fins and fusing systems would have to be attached. Operation Castle was considered by government officials to be a success as it proved the feasibility of deployable "dry" fuel designs for thermonuclear weapons. There were technical difficulties with some of the tests: one device had a yield much lower than predicted (a " fizzle"), while two other bombs detonated with over twice their predicted yields. One te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Redwing
Operation Redwing was a United States series of 17 nuclear test detonations from May to July 1956. They were conducted at Bikini and Enewetak atolls by Joint Task Force 7 (JTF7).Blumenson, Martin and Hugh D. Hexamer (1956). ''A History of Operation Redwing: The Atomic Weapons Tests in the Pacific''. Joint Task Force Seven Headquarters, Washington, D.C. p. 19. The entire operation followed '' Project 56'' and preceded ''Project 57''. The primary intention was to test new, second-generation thermonuclear weapons. Also tested were fission devices intended to be used as primaries for thermonuclear weapons, and small tactical weapons for air defense. ''Redwing'' demonstrated the first United States airdrop of a deliverable hydrogen bomb during test ''Cherokee''. Because the yields for many tests at Operation Castle in 1954 were dramatically higher than predictions, ''Redwing'' was conducted using an "energy budget": There were limits to the total amount of energy released, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SM-62 Snark
The Northrop SM-62 Snark is an early-model intercontinental range ground-launched cruise missile that could carry a W39 thermonuclear warhead. The Snark was deployed by the United States Air Force's Strategic Air Command from 1958 through 1961. It represented an important step in weapons technology during the Cold War. The Snark was named by Jack Northrop and took its name from the author Lewis Carroll's character the "snark". ‘’From Snark to Peacekeeper. Office of the Historian, Strategic Air Command, Offutt Air Force Base, Nebraska (1990). The Snark was the only surface-to-surface cruise missile with such a long range that was ever deployed by the U.S. Air Force. Following the deployment of ICBMs, the Snark was rendered obsolete, and it was removed from deployment in 1961. Design and Development Project Mastiff, to create a missile for delivery for an atom bomb began immediately after the existence of the atomic bomb was revealed. Due to protracted security concerns of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B39 Nuclear Bomb
The Mark 39 nuclear bomb and W39 nuclear warhead were versions of an American thermonuclear weapon, which were in service from 1957 to 1966. The Mark 39 design was a thermonuclear bomb (see Teller-Ulam design) and had a yield of 3.8 megatons. It weighed 6,500–6,750 pounds (2,950–3,060 kilograms), and was about 11 feet, 8 inches long (3.556 meters) with a diameter of 2 feet, 11 inches (88.9 centimeters).The design is an improved Mark 15 nuclear bomb design (the TX-15-X3 design and Mark 39 Mod 0 were the same design). The Mark 15 was the first lightweight US thermonuclear bomb. The W39 warhead is in diameter and long, with a weight of to . It was used on the SM-62 Snark missile, PGM-11 Redstone short-range ballistic missile, and in the B-58 Hustler weapons pod. Goldsboro Incident Two Mark 39 nuclear bombs that were carried by a B-52 Stratofortress broke up in the air and crashed near Goldsboro, North Carolina on January 24, 1961. According to Parker F. Jones, a sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics Package
Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate. There are three existing basic design types: * pure fission weapons, the simplest and least technically demanding, were the first nuclear weapons built and have so far been the only type ever used in warfare (by the United States on Japan during WWII). * boosted fission weapons increase yield beyond that of the implosion design by using small quantities of fusion fuel to enhance the fission chain reaction. Boosting can more than double the weapon's fission energy yield. * staged thermonuclear weapons are essentially arrangements of two or more "stages", most usually two. The first stage is normally a boosted fission weapon as above (except for the earliest thermonuclear weapons, which used a pure fission weapon instead). Its detonation causes it to shine intensely with x-radiation, which illuminates and implodes the second stage filled wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1958 Tybee Island Mid-air Collision
The Tybee Island mid-air collision was an incident on February 5, 1958, in which the United States Air Force lost a Mark 15 nuclear bomb in the waters off Tybee Island near Savannah, Georgia, United States. During a practice exercise, an F-86 fighter plane collided with the B-47 bomber carrying the bomb. To protect the aircrew from a possible detonation in the event of a crash, the bomb was jettisoned. Following several unsuccessful searches, the bomb was presumed lost somewhere in Wassaw Sound off the shores of Tybee Island. Midair collision The B-47 bomber was on a simulated combat mission from Homestead Air Force Base in Florida. It was carrying a single bomb. At about 2:00 a.m., an F-86 fighter collided with the B-47. The F-86 crashed after the pilot ejected from the plane. The damaged B-47 remained airborne, plummeting from when the pilot, Colonel Howard Richardson, regained flight control. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing B-47 Stratojet
The Boeing B-47 Stratojet (Boeing company designation Model 450) is a retired American long- range, six-engined, turbojet-powered strategic bomber designed to fly at high subsonic speed and at high altitude to avoid enemy interceptor aircraft. The primary mission of the B-47 was as a nuclear bomber capable of striking targets within the Soviet Union. Development of the B-47 can be traced back to a requirement expressed by the United States Army Air Forces (USAAF) in 1943 for a reconnaissance bomber that harnessed newly developed jet propulsion. Another key innovation adopted during the development process was the swept wing, drawing upon captured German research. With its engines carried in nacelles underneath the wing, the B-47 represented a major innovation in post-World War II combat jet design, and contributed to the development of modern jet airliners. Suitably impressed, in April 1946, the USAAF ordered two prototypes, designated "XB-47"; on 17 December 1947, the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tybee Island, Georgia
Tybee Island is a city and a barrier island located in Chatham County, Georgia, 18 miles (29 km) east of Savannah, United States. Though the name "Tybee Island" is used for both the island and the city, geographically they are not identical: only part of the island's territory lies within the city. The island is the easternmost point in Georgia. The famous phrase "From Rabun Gap to Tybee Light," intended to illustrate the geographic diversity of Georgia, contrasts a mountain pass near the state's northernmost point with the coastal island's famous lighthouse. As of the 2020 census, the city's population was 3,114. The entire island is a part of the Savannah Metropolitan Statistical Area. Officially renamed "Savannah Beach" in a publicity move at the end of the 1950s, the city of Tybee Island has since reverted to its original name. (The name "Savannah Beach" nevertheless appears on official state maps as far back as 1952 and as recently as the mid-1970s.) The small is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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