This is hypersonic. Way faster, way more heat just from moving through air. We will not see passenger aircraft going hypersonic for a long time. It will be hard enough to make a hypersonic aircraft that doesn’t melt itself during flight.
The main reason supersonic flight is dead is the sonic boom. Until that issue is resolved they are banned over land, unfortunately.
The main reason supersonic flight is dead is the sonic boom. Until that issue is resolved they are banned over land, unfortunately.