160227-N-NI474-383 NAF EL CENTRO, Calif. (Feb. 27, 2016) Pilots and their crew chiefs assigned to the U.S. Navy Flight Demonstration Squadron, the Blue Angels, prepare to launch during a practice demonstration at Naval Air Facility El Centro, Feb. 27, 2016. The Blue Angels are conducting winter training before kicking off the 2016 air show season. (U.S. Navy photo by Mass Communication Specialist 2nd Class Daniel M. Young/Released)