Airbus recently exposed a supersonic passenger plane scheme, which triggered people's expectations for supersonic travel. The existing commercial passenger planes of Airbus and Boeing belong to subsonic aircraft, while Concorde and Tu-144, which were able to fly at supersonic speed before, have been retired. It is worth noting that this supersonic airliner has applied for a patent in the US Patent and Trademark Office, which shows that the design of Airbus is different from that of Boeing and NASA. The highlight is that they use a combined power system, which can achieve the fastest supersonic flight of Mach 4.5. This means that the transatlantic flight from London to new york can be completed in one hour.
Airbus supersonic airliner program.