Complex sentence: On August 23,1946 USS SHACKLE was commissioned into the United States Coast Guard as USCGC Acushnet (WAT-167), a search and rescue vessel and was homeported in Portland, Maine.
Split into simpler sentences: On August 23,1946 USS SHACKLE was commissioned into the United States Coast Guard as USCGC ACUSHNET (WAT-167). ACUSHNET was converted into a search and rescue vessel and was homeported in Portland, Maine.