Secretary of the Air Force Michael W. Wynne asks questions about the models being used to conduct F-35 Lightning II store separation testing in the Arnold Engineering Development Center’s (AEDC) four-foot transonic wind tunnel. Capt. Rod Fried, Air Force flight systems test manager with AEDC’s 716th Test Squadron, and F-35 Store Separation Engineer Chris Hetreed with Lockheed Martin, were on hand to answer questions during Secretary Wynne’s first visit to the center Nov. 27, 2007. (Photo by David Housch)