NASA's X-59 plane goes supersonic for the first time

https://www.scientificamerican.com/article/nasas-x-59-plane-goes-supersonic-for-the-first-time/

#Aviation #Aerospace #Supersonic

NASA X-59 is an experimental aircraft designed to replace sonic boom with a quiet thump of 75 PLdB.

#nasa #supersonic #sonicboom #aerospace #aviation #technology

https://radarkilat.com/en/article/nasa-x-59-experimental-supersonic-aircraft-to-eliminate-sonic-boom-over-land

Seeking Quieter Supersonic Flight

Supersonic flight over the U.S. has been banned by all non-military aircraft for more than fifty years. The ban gained momentum in the 1960s after test programs over St. Louis and Oklahoma provoked public outcry. But NASA’s X-59 aircraft is working to lift the ban by softening the sonic booms that encouraged the ban in the first place. Although it hasn’t been tested at supersonic speeds yet, pilots are putting the sharp and skinny X-59 through its paces, slowly widening the flight envelope.

https://www.youtube.com/watch?v=gR4Xuslczoo

In the video above, NASA shares footage of some of the recent test flights, including various maneuvers like phugoids, banking rolls, flutter, and landing gear tests. Pay close attention to the pilot’s view and the radio chatter, and you’ll hear that they’re hovering around Mach 0.98 in some cases–just underneath the point of generating a shock wave around the aircraft. It will be neat to see what happens when they finally do go supersonic. Will it be as quiet as promised? (Video credit: NASA; image credit: NASA/L. Losey; see also NASA; via Gizmodo)