Doug Mann, regional director of maintenance for Delta Air Lines, stands between Major Todd Rupright, right, commander of the 127th Civil Engineering Squadron, and Senior Airman Ryan Dunlap, left, a member of the 127th CES. Dunlap, who works at Delta as an aircraft maintainer in his civilian job, was able to assist a Delta crew that was displaying a Delta airliner at the 2011 Selfridge Air Show, Aug. 21, 2011, at Selfridge Air National Guard Base, Mich. (USAF photo by SSgt. Bradley Moehlig)