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Technically, not "avoid" but "quiet enough that people don't notice it much." Companies developing new supersonic planes: Mach 2.2 airliner: https://boomsuper
by mgsouth 7y ago
Technically, not "avoid" but "quiet enough that people don't notice it much."
Companies developing new supersonic planes:
Mach 2.2 airliner: https://boomsupersonic.com/ https://boomsupersonic.com/
XB-1 prototype in construction, scheduled for supersonic flights in 2020.
Mach 1.4 business jet: https://www.aerionsupersonic.com/ https://www.aerionsupersonic.com/
Boeing is partnering, Feb. 2019 press release says "first test flight slated for 2023."