Located in a shipyard to the southeast corner of San Francisco, the USS Mahan was a "Farragut"-class guided missile destroyer that was launched on what date?
USS Mahan (DDG-42) USS "Mahan" (DDG-42), was a "Farragut"-class guided missile destroyer in the United States Navy. She was named for Rear Admiral Alfred Thayer Mahan USN (1840–1914). The ship was Laid down as DLG-11 by the San Francisco Naval Shipyard on 31 July 1957 and launched on 7 October 1959. "Mahan" was sponsored by Mrs. H. P. Smith, wife of Vice Adm. Harold Page Smith, and commissioned on 25 December 1960. "Mahan" was reclassified as a guided missile destroyer on 30 June 1975 and designated DDG-42. USS "Mahan" was decommissioned on 15 June 1993 and stricken from the Naval Vessel Register on the same day.
USCGC Tern (WPB-87343) USCGC "Tern" (WPB-87343) is an 87 ft long Marine Protector-class coastal patrol boat of the United States Coast Guard built by Bollinger Shipyards in Lockport, Louisiana. "Tern" is stationed in San Francisco, California and her primary missions are ports, waterways and coastal security, search and rescue, law enforcement, marine environmental response, recreational boating safety and military readiness. She was commissioned in 2002 to replace the 82 ft Point class cutter,  .