High Quality Content by WIKIPEDIA articles! USS Somerset (AK-212) was originally a U.S. Navy Alamosa-class cargo ship built for service in World War II, and was later re-acquired from the U.S. Air Force in 1964 as the USNS Coastal Sentry (T-AGM-15), a missile range instrumentation ship. The third ship to be so named by the Navy, Somerset (AK-212) (ex-MC hull 2166) was laid down on 9 October 1944 by the Leathern D. Smith Shipbuilding Co., Sturgeon Bay, Wisconsin; launched on 21 January 1945; sponsored by Mrs. Fred Bradley; acquired by the Navy from the U.S. Maritime Commission on 20 September 1945; and commissioned the same day.