‘SON of Concorde’ XB-1 jet is “on track” to break the sound barrier in early 2025, makers of the supersonic plane have announced.
In its first major update of the year, bosses at Colorado-based Boom Technology, confirmed the jet was able to reproduce “transonic” speeds of Mach 0.95 or 575 knots.
BoomXB-1 reached Mach 0.95 at 32,417ft in a test flight on 19 December, a new speed and altitude record at the time[/caption] Boom TechnologyThe most recent test flight on 10 January...
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