Airman 1st Class Rebecca Reimer, 9th Airlift Squadron loadmaster student, turns on the auxiliary power units of a Dover Air Force Base C-5M Super Galaxy during a Major Command Service Tail Trainer at Holloman AFB, New Mexico, June 8, 2021. The 9th AS performs MSTTs 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 training time by up to 35 days. (U.S. Air Force photo by Senior Airman Faith Schaefer)