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| | Encyclopedia: Nuclear test (Site not responding. Last check: 2007-10-18) |
 | | Frigate Bird - on May 6, 1962, a UGM-27 Polaris A-1 missile with a live 600 kt W47 warhead was launched from the USS Ethan Allen (SSBN-608), it flew 1900 km, re-entered the atmosphere, and detonated at an altitude of 3.4 km over the South Pacific; part of Operation Dominic I. |
 | | Planned as a method to dispel doubts about whether the USA's nuclear missiles would actually function in practice, it had less effect than was hoped, as the stockpile warhead was substantially modified prior to testing, and the missile tested was a relatively low-flying SLBM and not a high-flying ICBM. |
 | | Both were part of Operation Hardtack and had a yield of 3.75 Mt On July 9, 1962, Thor missile 195 launched a Mk4 reentry vehicle containing a W49 thermonuclear warhead to an altitude of 248 miles (400 km). |
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