what are the vehicles?
north american x-15, william j. knight, lockheed sr-71 blackbird, eldon w. joersz, tupolev tu-114, ivan soukhomline, grumman f8f bearcat rare bear (n777l), lyle shelton, westland lynx 800 g-lynx, john egginton, schempp-hirth nimbus-4dm, klaus ohlmann and  matias garcia mazzaro, mit monarch b, frank scarabino
who piloted north american x-15?
william j. knight