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          Bell
            X-1
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          The
            Bell X-1 was designed for research in  transonic
            flight.  It's first powered flight was in 1946.  On
            October 14, 1947 Capt. Chuck Yeager broke the sound barrier in level
            flight.  The X-1 was carried aloft by a B-29 or B-50 and
            released.  The rocket engine then boosted the X-1 to speed and
            altitude.  The pilot glided the craft back to a landing.
             First flown in 1953, the X-1A featured
            increased fuel capacity, a longer fuselage and a modified cockpit
            with improved visibility. 
            The X-1B was designed to investigate
            aerodynamic heating and reaction control systems.  First flown
            in 1954, it continued to be flown until 1958.  | 
         
        
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          page
            updated 13 February 2008
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