Seven U.S. Air Force KC-135 Stratotanker aircraft line up on the flight line. Seven U.S. Air Force KC-135 Stratotanker aircraft line up on the flight line for a training mission at Royal Air Force Station Mildenhall, United Kingdom, on March 13, 2006. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 134875-D-LNM64-492.jpg Photo Gallery