Capt. Andy Alfiero, 340th Expeditionary Air Refueling Squadron pilot, performs a preflight check on a KC-135R Stratotanker in preparation for a refueling mission over the Persian Gulf Aug. 30, 2013. Alfiero is deployed from the Maine Air National Guard. (U.S. Air Force photo by Master Sgt. Ben Bloker/Released)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/39513508@N06">US Air Force</a> from USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usairforce/9737571468/">Preparing for flight</a>