USS Rock (SS 274)
Keel Laid – December 23, 1942
Launched – June 20, 1943
Commissioned – October 26, 1943
USS Rock made six war patrols in the Pacific during World War II, earning four Battle Stars. She sank one ship and damaged 42,282 tons of shipping. On February 29, 1944, Rock endured a four-hour depth charging after a failed run in with a destroyer. The periscopes were severely damaged and the bridge was riddled with shrapnel. The damage forced them to return to Pearl Harbor for repairs.
In 1951 Rock was converted to a Migrain III type radar picket submarine. The hull was lengthened 30 feet by cutting the hull in half just ahead of the Control Room bulkhead and adding a new section to the hull. This was done to make room for additional electronic equipment. Rock was recommissioned in 1953 and served as an Auxiliary General Submarine (AGSS) out of San Diego, CA before being stricken from the Naval Register in 1969.