Gene Kranz, flight director of the odd-numbered Apollo missions, and U.S. Air Force Lt. Col. David Dunn, 846th Test Squadron commander, observe displays of test track sleds at the 46th Test Group March 8. In the past Kranz worked at Holloman Air Force Base, N.M., with the McDonnell Aircraft Corporation, where he assisted with the research and testing of new surface-to-air and air-to-ground missiles. (U.S. Air Force photo by Airman 1st Class Michael Shoemaker/Released)