Johnny Armstrong, the Hypersonics Combined Test Force Chief Engineer for Air Force, until his retirement in 2012, passed away just last week. He worked in hype

Johnny Armstrong, the Hypersonics Combined Test Force Chief Engineer for Air Force, until his retirement in 2012, passed away just last week. He worked in hypersonics from the X-15 to the X-51 Waverider. https://www.edwards.af.mil/News/Article/1922993/team-edwards-loses-one-of-its-own-as-hypersonics-pioneer-johnny-g-armstrong-dies/ https://www.edwards.af.mil/News/Article/1922993/team-edwards... https://vimeo.com/37453969 https://vimeo.com/37453969