On the night of February 10th, 1964 , two Royal Australian Navy vessels — the aircraft carrier HMAS Melbourne and the destroyer HMAS Voyager — were conducting night flying exercises off the coast of Jervis Bay. At around 8:56 p.m. , the Voyager was instructed to take up a “plane guard” position — a routine maneuver to trail the carrier and retrieve aircrew in case of emergency. But what followed was anything but routine. The Voyager unexpectedly turned toward the Melbourne