Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph, ...
Watch on DVD or Blu-ray starting January 1st, 1998 - Buy The Standard Deviants: The Supersonic World of Differential Equations DVD ...
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