Fly times between destinations have been stuck at the same level for decades. To improve the situation supersonic planes will eventually be needed. The Concorde seemed to bring in a new era of flying already 40 years ago, but its loud sonic booms restricted its use of supersonic speed to flying over sea only.
A team led by the Lockheed/Martin Corporation has developed a concept to dramatically lowering the level of sonic booms through the use of an “inverted-V” engine-under wing configuration. This could enable supersonic flights over land. The plane is being called a Supersonic Green Machine.
This supersonic cruise concept is among the designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced aircraft.
But don’t let this change your travel plans. This plane, if ever materialized, will not enter service until the 2030-2035 timeframe.