Important day in its six-year history: The unveiling of the XB-1, nicknamed Baby Boom. The two-seat demonstrator is the world's first privately financed and built supersonic jet. The XB-1 is 21 meters (69 feet) long, has a wingspan of 6.40 meters and can fly two test pilots at up to 2.2 times the speed of sound (Mach 2.2 or about 2,700 kilometers per hour [1,678 miles per hour]) over a distance of up to 1,900 kilometers.

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