 His demons finally exorcised, he later attends the launching of another "Tiger Shark" with his wife, their baby and Boyer.No ship of the United States Navy has ever borne the name USS "Tiger Shark" or "Tigershark", but the name is popular for fictional submarines (and real submarines have been named USS "Shark").The fictional "Tiger Shark" in the film has the hull number SS-306, which belonged to (lost in 1944).