The American company Lockheed Martin before the end of 2020, fully completed the Assembly of a demonstrator of “quiet” supersonic passenger aircraft X-59, which is being developed under the project QueSST. As writes Live Science, the new aircraft also will be the first test this year, and will make its first flight in 2021-m.
The QueSST program, which involves development of the plane X-59, provides for the creation of technologies that in future will allow to reduce the noise of supersonic aircraft. This will allow them to perform supersonic flights over populated part of the land, today prohibited by international rules.
Noise X-59 is to be reduced with the help of this glider aerodynamic design by which the surface of the aircraft would be formed as a smaller number of shock waves. While those waves that are still to be formed, should be less intense.
Under the project, a demonstrator of “quiet” supersonic aircraft will be performed single engine. The length of the aircraft will total 28.7 meters. He will get the airframe, the fuselage and wing which resemble an inverted plane. X-59 install a conventional vertical fin and horizontal rudders for maneuvering at low-speed flight.
Among other design solutions that will reduce the noisiness of aircraft — long sharp nose, which will completely obstruct the pilots view to the front.
Under current plans, the demonstrator X-59 will have different measuring systems, including the post flight data, which will be possible to measure vibrations of the airframe. In addition, instruments will measure the intensity of the shock waves formed on the surface of the airframe, and to compare the obtained data with the calculated one.
As flight testing, the developers will collect the information necessary for the pilot certification of a supersonic aircraft. Upon receipt of such certificate it will be possible to test flights over populated areas, residents who agreed to participate in the experiment.
X-59 will perform supersonic flights over populated areas — volunteers. Then their inhabitants will have to assess the volume of the aircraft. Data collected and evaluation, as developers hope, will allow to remove the current ban on supersonic flight over populated areas.