here's our report from 1973, when jules bergman wrote a landmark flight that landed in dallas. >> we're flying at nearly 1300 miles an hour, 57,000ft over the ocean. and the most surprising thing about traveling at this speed is the lack of any sensation of supersonic speed. >> pretty cool. but the economics didn't really work too well. concorde required a lot more fuel and could seat fewer people, so it was retired in 2003. however, yesterday the mojave desert, a colorado based company called supersonic boom, flew their private jet at mach one, becoming the first american civil aircraft to break the sound barrier. they're looking at more flights, guys. >> i don't want to be on the first one. >> we're picking up where concorde left off, so i don't think there's any question of whether passengers want faster flights. i don't know a single one who wants to spend more time on an airplane, provided that the flight is affordable and safe and convenient and comfortable. >> so the plan is to make a plane that can carry up to 80 people across the atlantic in 3.5 hours, guys. however, when it co