Airman 1st Class Patrick Cochran, front, and Airman Aristotle Ordinario, 365th Training Squadron F-15 avionics apprentice course students, pull out the radar from an F-15 Eagle training aircraft at Sheppard Air Force Base, Texas, May 9, 2019. The students are on block 10 out of 12 and are learning how to remove and replace the F-15's radar, which weighs around 200 pounds. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)