New U.S. ‘Boomless’ Bill Would Ease Supersonic Flight Ban

Boom XB-1

Boom’s XB-1 demonstrated Mach cutoff boomless flight early this year.

Credit: Boom Supersonic
The seemingly intractable problem of quieting sonic booms has hobbled commercial supersonic development for decades, most notably since 1973, when the FAA established regulations forbidding faster-than-sound flight over land. That law, enshrined as FAA regulation 14 CFR 91.817, makes it illegal for...
Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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