Improved eyesight
Ladd Henneman, a Lockheed Martin flight sciences engineer, removes a protective film from a Terminal High Altitude Area Defense missile forecone’s infrared seeker window prior to an aerothermal test at Arnold Engineering Development Center’s Hypervelocity Wind Tunnel 9 facility in Silver Spring, Md. The window is made from a new advanced material that will provide improved seeker performance at reduced cost. (Photo by Arnold Collier)