So, thus far we have 135 BA plus 128 AF plus 40 Braniff plus 113 Flight Engineers plus say 20 for Test Pilots and Training Captains which I make 436, so pretty close to the 450 or so (not counting the latest 3 Chinese, I assume!!) in space. Don't think this bet is over yet!! Of course, if you restrict it to those who actually PILOTED it, am I correct in saying the Flight Engineers would not count in the total??