U.S. Air Force Capt. John Wicker prepares to connect to a KC-10 Stratotanker aircraft during a sortie mission over South Carolina April 27, 2010.
Aircrew members from Joint Base Charleston conduct aerial training missions periodically to practice air delivery, refueling and low-level tactical maneuvers. Wicker is a pilot with the 17th Airlift Squadron. (DoD photo by Staff Sgt. Angelita Lawrence, U.S. Air Force/Released). Original public domain image from Flickr