LARGE FORMATION Air Force C-17 Globemaster III aircraft fly in formation during Crescent Reach 15 in Charleston, S.C., May 21, 2015. This exercise evaluated Joint Base Charleston's ability to launch a large aircraft formation in addition to processing and deploying duty passengers and cargo in response to a simulated crisis. The aircraft are assigned to the 437th Airlift Wing. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 523002-O-WGI84-017.jpg Photo Gallery