▁her ▁first ▁over ha ul ▁at ▁New port ▁News ▁Sh ip building ▁in ▁New port ▁News , ▁Virginia , ▁for ▁nuclear ▁ref uel ing ▁and ▁conversion ▁of ▁her ▁ball istic ▁miss ile ▁system ▁to ▁support ▁the ▁P ose id on ▁C - 3 ▁ball istic ▁miss ile . ▁She ▁completed ▁her ▁conversion ▁in ▁late ▁ 1 9 7 2 ▁and ▁comm enced ▁a ▁rig orous ▁schedule ▁of ▁sea ▁tri als ▁and ▁exer cis es , ▁cul min ating ▁in ▁the ▁Dem on str ation ▁and ▁Sh aked own ▁Operation ▁( D AS O ) ▁of ▁her ▁P ose id on ▁miss ile ▁system , ▁which ▁tested ▁her ▁ball istic ▁miss ile ▁system ▁and ▁crew ▁by ▁requiring ▁the ▁launch ▁of ▁a ▁P ose id on ▁C - 3 ▁miss ile ▁from ▁the ▁sub marine . ▁ ▁James ▁K . ▁Pol k ▁res umed ▁d eter rent ▁pat rol s ▁in ▁the ▁Atlantic ▁Ocean ▁in ▁May ▁ 1 9 7 3 ▁with ▁her ▁new ▁P ose id on ▁miss iles . ▁She ▁conducted ▁her ▁second ▁over ha ul ▁at ▁Port sm outh ▁Naval ▁Sh ip yard ▁at ▁K itter y , ▁Maine , ▁after ▁comple ting ▁her ▁ 5 0 th ▁d eter rent ▁pat rol ▁in ▁September ▁ 1 9 8 1 . ▁She ▁completed ▁over ha ul ▁in ▁ 1 9 8 3 ▁and ▁conducted ▁seven ▁more ▁successful ▁d eter rent ▁pat rol s . ▁ ▁James ▁K . ▁Pol k ▁returned ▁to ▁Port sm outh ▁Naval ▁Sh ip yard ▁in ▁January ▁