Photo session just before midair collision of Joe Walker's F-104N and Al White and Carl Cross's XB-70A. Aircraft are (near to far) Northrop 6-38, McDonnell F-4B, North American XB-70 Lockheed F-104N, and Northrop F-5A. Filming was done from a Citation. Mission Tracking was being performed by Air Edwards AFB, NASA's Dryden radar, and the radar at the Beatty Station of the NASA High Range.