U.S. civil aviation has treated Mach 1 over land as a hard boundary for more than five decades, but the Federal Aviation ...

Supersonic flight was always focused on crossing oceans in record time. The Concorde famously brought flight times between New York and London down to three hours before its last retirement in 2003.

The Federal Aviation Administration (FAA) recently published a notice of proposed rulemaking to enable supersonic flight over land as long as the operation does not exceed a certain noise standard.

After 50 years, commercial flights over the United States are on the brink of going supersonic. The Federal Aviation Administration last week published a notice of proposed rulemaking to upend a ban ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration: Adani Samat. Photo: Boom Supersonic Supersonic flight was always focused on crossing oceans in record time. The ...