From the source:
US Air Force flight line, Bien Hoa Air Base. Mostly F-100’s but notice the four delta wing F-102 interceptor’s at lower right standing by for the MiGs that never came. An F-102 crashed after takeoff just over the river in the background when I was in the 190th AHC. One of our helicopters was there to pick him up before his parachute hit the ground.