>>1049224Concorde will never fly commercially again. Fantastic piece of engineering, but sadly I doubt it'll ever leave the ground again.
Several companies are exploring the concept of a SST, but we won't see them in the near future. Maybe 2025 or 2030.
Aerodynamically they're a challenge because the lift equation changes as you pass Mach 1.0, and the exponential drag rise around the sound barrier requires a lot of power to overcome.
The other big issue is the powerplant. A turbofan is fantastic for subsonic operation, offering high efficiency and power with reasonable fuel economy, but those benefits disappear quickly around Mach 1 due to the inability of the fan to cope with aerodynamic compression. A turbojet is loud and thirsty in the subsonic range, but engine efficiency and fuel economy increases greatly above Mach 1.0 due to ram effect, making them ideal for supersonic operation. They must be powerful enough to overcome the drag of supersonic operation but quiet enough for regulatory purposes, but you can't have your cake and eat it too, I suppose.
tldr: keep waiting.
