Denver-based Boom Technology recently unveiled a demonstrator for its supersonic airliner, which is expected to enter the market in 2023. The prototype, XB-1, affectionately referred to as "Baby Boom," is a one-third-scale version of the passenger jet, but it is expected to match its stellar Mach 2.2 top speed. First flight for Baby Boom is planned for later this year, while the commercial Boom version is not expected to fly until 2020.
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