The U.S. Air Force, in partnership with Northrop Grumman, completed a full-scale qualification test of the stage-two solid rocket motor for the LGM-35A Sentinel intercontinental ballistic missile, July 20, by the 717th Test Squadron at the Arnold Engineering Development Complex.
This news post "Air Force, Northrop Grumman advance Sentinel ICBM modernization with stage-two rocket motor test" was originally found on https://www.af.mil/News/Category/755/top-stories/
