Staff Sgt. Joshua Whitford, 96th Maintenance Group, marshals the F-15EX, the Air Force’s newest fighter aircraft, to a stop at Eglin Air Force Base, Florida March 11. The aircraft will be the first Air Force aircraft to be tested and fielded from beginning to end through combined developmental and operational tests. The 40th Flight Test Squadron and the 85th Test and Evaluation Squadron personnel are responsible for testing the aircraft. (U.S. Air Force photo/Samuel King Jr.)