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  2. W47 - Wikipedia

    en.wikipedia.org/wiki/W47

    The missile warhead detonated at 23:30 GMT on May 6, 1962, approximately 1.2 miles (2 km) from the designated target point, and at the target altitude of 11,000 ft (3,400 m). The detonation was successful and had the full design yield of the W47Y1 at approximately 600 kilotons. The shot was designed to improve confidence in the US ballistic ...

  3. LIM-49 Spartan - Wikipedia

    en.wikipedia.org/wiki/LIM-49_Spartan

    The US Army started their first serious efforts in the anti-ballistic missile arena when they asked the Bell Labs missile team to prepare a report on the topic in February 1955. The Nike team had already designed the Nike Ajax system that was in widespread use around the US, as well as the Nike Hercules that was in the late stages of ...

  4. Project Excalibur - Wikipedia

    en.wikipedia.org/wiki/Project_Excalibur

    At one of the Heritage Foundation meetings, Graham said there was a serious problem with the Excalibur concept, noting that if the Soviets launched a missile at the satellite, the US had only two choices – they could allow the missile to hit Excalibur and destroy it, or it could defend itself by shooting down the missile, which would also ...

  5. List of nuclear weapons tests - Wikipedia

    en.wikipedia.org/wiki/List_of_nuclear_weapons_tests

    Shot Frigate Bird of Operation Dominic on 6 May 1962, was the only U.S. test of an operational ballistic missile with a live nuclear warhead (yield of 600 kilotons), at Johnston Atoll in the Pacific. In general, missile systems were tested without live warheads and warheads were tested separately for safety concerns.

  6. Operation Dominic - Wikipedia

    en.wikipedia.org/wiki/Operation_Dominic

    Operation Dominic was a series of 31 nuclear test explosions ("shots") with a 38.1 Mt (159 PJ) total yield conducted in 1962 by the United States in the Pacific. [1] This test series was scheduled quickly, in order to respond in kind to the Soviet resumption of testing after the tacit 1958–1961 test moratorium.

  7. Cannikin - Wikipedia

    en.wikipedia.org/wiki/Cannikin

    The experiment, part of the Operation Grommet nuclear test series, tested the unique W71 warhead design for the LIM-49 Spartan anti-ballistic missile. [2] [3] With an explosive yield of almost 5 megatons of TNT (21 PJ), the test was the largest underground explosion ever detonated by the United States. [4]

  8. LGM-30 Minuteman - Wikipedia

    en.wikipedia.org/wiki/LGM-30_Minuteman

    The LGM-30F Minuteman II was an improved version of the Minuteman I missile. Its first test launch took place on September 24, 1964. Development on the Minuteman II began in 1962 as the Minuteman I entered the Strategic Air Command's nuclear force. Minuteman II production and deployment began in 1965 and completed in 1967.

  9. Air burst - Wikipedia

    en.wikipedia.org/wiki/Air_burst

    A blast wave reflecting from a surface and forming a mach stem. The air burst is usually 100 to 1,000 m (330 to 3,280 ft) above the hypocenter to allow the shockwave of the fission or fusion driven explosion to bounce off the ground and back into itself, combining two wave fronts and creating a shockwave that is more forceful than the one resulting from a detonation at ground level.