Chiefs Line Up
Crew chiefs for the U.S. Air Force Thunderbirds perform end of runway checks at the Wings Over Whiteman air show in June 2015.
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/f9/21/f921fec3-136e-4c67-b20c-44e0507e52a1/18776255069_759888a72d_k.jpg)
Crew chiefs for the U.S. Air Force Thunderbirds perform end of runway checks at the Wings Over Whiteman air show in June 2015.