Senior Airman Edwin Vado, left, 436th Aircraft Maintenance Squadron flying crew chief, and Staff Sgt. Alex Delamarter, 9th Airlift Squadron student flight engineer, review an Engines Running Onload checklist for a Dover Air Force Base C-5M Super Galaxy during a Major Command Service Tail Trainer at Holloman AFB, New Mexico, June 7, 2021. The 9th AS performs MSTTs to expedite upgrade and qualification training for C-5M loadmasters and flight engineers.(U.S. Air Force photo by Senior Airman Faith Schaefer)