Operational History
During her first major overhaul, like the rest of her class, Daniel Boone was retrofitted with Poseidon C-3 missiles and the associated Mark 88 firecontrol system. Poseidon was replaced by Trident C-4 missiles and on 6 September 1980, Boone became the first James Madison operational with the new missile.
On 7 April 1987 Daniel Boone ran aground in the James River at Newport News, Virginia.
Read more about this topic: USS Daniel Boone (SSBN-629)
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