U.S. Air Force 1st Lt. Pen, 94th Fighter Squadron F-22 Raptor pilot, completes his preflight checklist before take-off at Joint Base Langley-Eustis, Va., Sept. 18, 2017. While in the basic F-22 Raptor course, also known as “B” course, pilots learn the ins-and-outs of the F-22 including how it will respond during certain situations. (U.S. Air Force photo by Airman 1st Class Tristan Biese)