FAA Proposes New Rules That Would Legalize Supersonic Flight Across the United States

SummaryReplacing a 53-year-old ban on civil supersonic flight over land with a performance-based noise standardLimiting sonic boom overpressure to a strict maximum of 0.11 pounds per square foot at the surfacePaving the way for next-generation commercial airliners to drastically reduce travel times across the countryThe Federal Aviation Administration has issued a landmark notice of proposed rulemaking that officially lifts the 1973 prohibition on civil supersonic flight over the continental Uni...