From: utzoo!decvax!cca!Paul@sri-unix Newsgroups: net.space Title: Supersonic flight, X-20 Article-I.D.: sri-unix.2088 Posted: Wed Jul 14 17:03:15 1982 Received: Fri Jul 16 01:38:10 1982 These discussions of the X-20 and other rocket launched gliders reminds me of this bit of trivia: Q: What was the first winged vehicle to fly faster than sound, and when did it fly? If you say the X-1, you're wrong. The X-1 was the first *manned* winged vehicle to fly faster than sound. The first unmanned vehicle was a glider launched by the Germans on a V-2 in January 1945. It glided at Mach 4. -------