In this composite image a scale model of a GBU-38 is shown moving away from a B-52 Stratofortress in the 16-foot transonic wind tunnel at Arnold Air Force Base, Tenn., Jan. 14, 2022. Aircraft models are installed upside down in the wind tunnel for store separation testing. (U.S. Air Force photo illustration by Jill Pickett) (This image is a composite of several images created using photo editing software.)