190720-N-OY339-2056 DULUTH, Minn. (July 20, 2019) Aviation Machinist’s Mate 1st Class Chris Enlow performs routine maintenance on a Blue Angels’ jet engine at the Duluth Air Show in Duluth, Minn. The Blue Angels are scheduled to conduct 61 flight demonstrations at 32 locations across the country to showcase the pride and professionalism of the U.S. Navy and Marine Corps to the American public in 2019. (U.S. Navy photo by Mass Communication Specialist 2nd Class Christopher Gordon/Released)