Effects help American aircraft eliminate supersonic explosions

When the XB-1 tested aircraft broke the sound barrier 3 times on the first supersonic flight on January 28, the vehicle did not create a supersonic explosion that could be heard from the ground, according to Boom Supersonic Company of America. “This confirms our long -term beliefs. SUPERATURE BACK can be affordable, sustainable and friendly with passengers as well as people on the ground,”, ” New Scientist quoted Blake Scholl, founder and CEO of Boom SuperSonic.

When a plane flew over the atmosphere at high speed, it changes the surrounding air pressure, producing sound waves. When the supersonic flight surpasses the audio speed of Mach 1 (about 1,224 km/h), these sound waves combine into a shock wave transmitted from the flight. That supersonic explosion could spread far enough to transmit to the ground, producing extremely rumbling noise, shaking the house, even breaking the glass.

The hunch on the mainland was so annoying that the famous commercial passenger aircraft Concorde stopped operating in 2003 and promoted many countries to ban supersonic aircraft. Since then, aviation engineers have sought to develop aircraft designs that can reach supersonic speeds without making deafness noise. In this case, XB-1 takes advantage of a physical phenomenon called Mach cutoff. Because the sound waves move slower than the height, the plane overcame the sound barrier at such a height that will create an inexplicable explosion to the ground. If the explosion moves downwards, the increasing sound velocity will cause it to turn, pushing the shock wave upwards.

Accordingly, the temperature and wind also affects the sound speed, so the height and ideal speed for supersonic aircraft depend on the atmosphere conditions. “The truly challenge is to collect accurate atmosphere for temperature and wind, thereby calculating the necessary flight speed,” Bernd Liebhardt in the German space center said.

According to Boom Supersonic, the most recent and last test flight of XB-1 on February 10 also reached the supersonic speed without creating explosions. Currently, the company is using what learned from test flights to develop future commercial passenger aircraft called Overture. SUPERSY SUPERSY FLOOR will be 50% faster than the commercial passenger plane, so that the flight time between New York to Los Angeles will be 90 minutes shorter.