ED09-0070-39 The U.S. Air Force's F-16D Automatic Collision Avoidance Technology (ACAT) aircraft crew takes a close look at a Mojave Desert hill during a March 2009 flight. NASA«És Dryden Flight Research Center is working with the Air Force Research Laboratory in the ACAT Fighter Risk Reduction Project to develop collision avoidance technologies for fighter/attack aircraft that would reduce the risk of ground and mid-air collisions. March 24,
2009 NASA Photo / Jim Ross