Senior Airman Derrell Vann from Travis Air Force Base, Calif., explains to visitors at Joint Base Elmendorf-Richardson's Arctic Thunder Open House 2014 how he, as a boom operator aboard a KC-10 Extender, would conduct aerial refueling of other aircraft. The event features more than 40 Air Force, Army and civilian aerial acts, July 25-27, and has an expected crowd of more than 200,000 people. It is the largest two-day event in the state and one of the premier aerial demonstrations in the world. The 2014 Arctic Thunder Open House is a proud part of the Anchorage Centennial Celebration. (U.S. Air Force photo/Capt. Joel Cooke)
Capt. Joel Cooke
Taken on 26 July 2014
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