Air Force astronauts Col. James A. McDivitt and Col. David R. Scott, along with civilian Russell L. Schweickart, carry out the first in-space test of the lunar module while in Earth orbit during the Apollo 9 mission. The flight also marks the first time a crew transfer is made between space vehicles using an internal connection.
Air Force depots are not typically meant for quick repair jobs, but during Operation Epic Fury, the service moved some of its stateside heavy maintenance capability forward to fix battle-damaged aircraft closer to the fight.
