Airman 1st Class Dustin Brooks, 361st Training Squadron aerospace propulsion apprentice course student, removes and installs the augmenter and exhaust nozzle on a trainer engine at Sheppard Air Force Base, Texas, April 3, 2019. The augmenter increases the engine's thrust by 50%, while the exhaust nozzle regulates and controls the back pressure. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)