Mark 39 (nuclear weapon)/Definition: Difference between revisions

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U.S. thermonuclear weapon, derived from the [[Mark 15 (nuclear weapon)|Mark 15]]; 700 built between 1957 and 1959, retired between 1962 and 1966; 3 and 4 Mt versions; [[fuze]]d for airburst, contact and low-level retarded laydown; safety improved but still alleged to have come close to explosion  in 1961 after an aircraft accident
U.S. thermonuclear weapon, derived from the [[Mark 15 (nuclear weapon)|Mark 15]]; 700 built between 1957 and 1959, retired between 1962 and 1966; 3 and 4 Mt versions; fuzed for airburst, contact and low-level retarded laydown; safety improved but still alleged to have come close to explosion  in 1961 after an aircraft accident

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Mark 39 (nuclear weapon) [r]: U.S. thermonuclear weapon, derived from the Mark 15; 700 built between 1957 and 1959, retired between 1962 and 1966; 3 and 4 Mt versions; fuzed for airburst, contact and low-level retarded laydown; safety improved but still alleged to have come close to explosion in 1961 after an aircraft accident