U.S. Marine Corps MV-22 Osprey tiltrotor aircraft cycle through preflight checks in preparation for the arrival of President Barack Obama at RAF Fairford, England, Sept. 3, 2014.
The aircraft provided aerial support during the president's flight from RAF Fairford to Wales for the 2014 NATO Summit. (U.S. Air Force photo by Staff Sgt. Jarad A. Denton/Released). Original public domain image from Flickr