USS Wahoo (SS 238) is launched at Mare Island Navy Yard, Calif., just eight months after her keel was laid. Adm. Gary Roughead, commander, U.S. Pacific Fleet, declared that the sunken submarine recently discovered by divers in the Western Pacific is the World War II submarine USS Wahoo (SS 238). Official U.S. Navy Photograph, from the collections of the Naval Historical Center. Commander, U.S. Pacific Fleet declared Oct. 31 that the sunken submarine recently discovered by divers in the Western Pacific is, indeed, the World War II submarine USS Wahoo (SS 238). "After reviewing the records and information, we are certain USS Wahoo has been located," said Adm. Gary Roughead, the U.S. Pacific Fleet commander.