LANGLEY AIR FORCE BASE, Va. -- Airman 1st Class William Stanton, 1st Component Maintenance Squadron egress apprentice, completes a pre-flight checklist for the Advanced Concept Ejection Seat II ejection system from an F-22 Raptor May 12. The F-15 ACES II systems require a 55-step check prior to flight, and F-22’s undergo a 103-step inspection. (U.S. Air Force photo/Airman 1st Class Jason J. Brown)