SAN FRANCISCO, California — A huge wave swept over the bow of a Navy destroyer Wednesday, knocking six crewmen around on the deck and leaving one with two broken legs. The sailors were airlifted from the USS David R. Ray to Stanford Medical Center. Other injuries included a concussion, a dislocated hip, and a slight head injury. The destroyer was about seven miles west of the Golden Gate Bridge, on its way out to sea after a weekend in San Francisco when the wave slammed into it.