This one-of-a-kind photo (at top right) was shot by Mr. Harry Gann, of McDonnell Douglas, at the Point Mugu Naval Air Station on 23 October 1971. The aircraft, a McDonnell Douglas F-4J Phantom II 'Black Bunny' (#3783) from Navy flight test squadron VX-4, was captured on film while flying at near supersonic velocity. However, the local velocity on parts of the aircraft were supersonic, causing the two distinctive, diamond-shaped shock wave cones around the leading and trailing edges of the aircraft. A photograph like this is rare. "At the time, I was using a motorized Nikon F-2 camera with a 300mm lens," states Mr. Gann. "I shot about four frames. The film was Ektachrome 400. As I remember, I was standing about 70 yards from the taxiway during the pass."