Interesting, I didn't realize Mark had resigned from LaRC. I'd be interested to hear a more complete take on his opinions about NASA Aeronautics, because he sou

Interesting, I didn't realize Mark had resigned from LaRC. I'd be interested to hear a more complete take on his opinions about NASA Aeronautics, because he sounded a bit disillusioned. The big caveat when comparing to industry efforts, of course, is that NASA Aero, by design, is not an airline, or an airframe manufacturer, or a regulator. It's an R&D outfit that still very much follows the structure of its predecessor, NACA.