Big picture
Left, Aerospace Testing Alliance Tour Coordinator Stephanie Warren explains the Propulsion Wind Tunnel facility to Maj. Gen. Melissa Rank during her visit. Chief Master Sgt. Joseph Potts, far right, accompanied the general on her visit. Center, Superintendent of the Arnold Medical Aid Station Senior Master Sgt. Karl Day and Non-Commissioned Officer-in-Charge of Base Medical Services Master Sgt. Rob Louchery, behind right, also joined the tour. (Photo by David Housch)