Staff Sgt. Justin Thomas, 9th Airlift Squadron noncommissioned officer in charge of loadmaster training, climbs the troop deck stairs of a C-5M Super Galaxy from Dover Air Force Base, Del., during a Major Command Service Tail Trainer exercise at Holloman AFB, N.M., June 4, 2021. The 9th AS performs MSTT exercises to expedite upgrade and qualification training for C-5M loadmasters and flight engineers. Of the 350 tasks needed to be a fully qualified loadmaster, roughly half can be completed during an MSTT, reducing the time of training by up to 35 days. (U.S. Air Force photo by Senior Airman Faith Schaefer)