The United States Navy Flight Demonstration Squadron "Blue Angels" perform a Delta Roll maneuver over the Burk Lakefront Airport, during their performance for the Cleveland National Air Show. The mission of the United States Navy Flight Demonstration Squadron is to showcase the pride and professionalism of the United States Navy and Marine Corps by inspiring a culture of excellence and service to country through flight demonstrations and community outreach. (U.S. Navy photo by Mass Communication Specialist 1st Class (SW/AW) Phillip D. James Jr. / Released)