Aerospace personality: I have a few of these: Barnes Wallis – truely brilliant British eccentric who actually delivered great new ideas; Werner von Braun, for his vision and humor; Sergei Pavlovich Korolev for his vision and tenacity – its incredible to think how he got the Russians into space first given the political and technical environment in the Soviet Union at the time. Neil Armstrong for doing what he did, and still being a normal, approachable person.