Barrier engagement
A 40th Flight Test Squadron F-15 Eagle connects with the barrier engagement on Duke Field’s runway Oct 23. The engagement was part of a routine test of the system. The 40th FTS Airmen fly operational test missions in the F-16, F-15 and A-10. The 40th FTS is a squadron in the 96th Test Wing. (U.S. Air Force photo/Samuel King Jr.)