SAN DIEGO (Feb. 12, 2011) A formation of CH-53 Super Stallion helicopters flies past the USS Midway aircraft carrier museum during the Centennial of Naval Aviation Open House and Parade of Flight at Naval Air Station North Island. The Navy is observing the Centennial of Naval Aviation with a series of nationwide events celebrating 100 years of heritage, progress and achievement in naval aviation. (U.S. Navy photo by Mass Communication Specialist 2nd Class Joseph M. Buliavac/Released)