** FILE ** An Aug. 18, 2011, photo released by Britain's Defense Ministry shows a Royal Air Force Puma helicopter flying over the 2012 Olympic Stadium during a training flight in London. (Associated Press/SAC Phil Major, Royal Air Force, Ministry of Defense)

Photo by: SAC Phil Major RAF

** FILE ** An Aug. 18, 2011, photo released by Britain's Defense Ministry shows a Royal Air Force Puma helicopter flying over the 2012 Olympic Stadium during a training flight in London. (Associated Press/SAC Phil Major, Royal Air Force, Ministry of Defense)