4 ms·

NASA does a lot of work on hypersonic flight. Lots of sources to link to, here's an article from a few years ago: https://arstechnica.com/science/2016/02/meet-

NASA does a lot of work on hypersonic flight. Lots of sources to link to, here's an article from a few years ago: https://arstechnica.com/science/2016/02/meet-nasas-new-x-planes-quiet-sonic-booms-and-engines-at-the-back/ https://arstechnica.com/science/2016/02/meet-nasas-new-x-pla...

melling 8y ago
That’s Nasa’s quiet supersonic project. Hypersonic is five or six times the speed of sound. It would of course be nice to have both.