Airman 1st Class Aren Stinebuck, a crew chief with the 436th Aircraft Maintenance Squadron, marshals C-5B 86-0020 out of it's parking spot for a four-day mission March 8, 2012, at Dover Air Force Base, Del. This was the last active-duty C-5B mission flown at Dover AFB. The 9th Airlift Squadron will now exclusively use the C-5M Super Galaxy for local training, state-side and overseas missions. (U.S. Air Force photo by Roland Balik)