NASA wants to make supersonic travel quieter. On Thursday the agency released new footage of its X-59 jet, a still-in-development plane that is designed to break the sound barrier over land—but with a sonic “thud” rather than a boom.
Faster air travel speeds mean shorter flights. But when an aircraft travels more rapidly than the speed of sound, it creates shock waves, generating a sonic boom. Those sonic booms can be a nuisance for people living nearby and can even cause damage to homes and startle animals.
The X-59 jet is NASA’s answer to that problem. Featuring a needlelike tip, it’s designed to travel at more than 1,000 miles per hour—about twice as fast as a commercial jet—while limiting the noise of the boom. NASA expects its sonic “thump” to be as loud as…
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Source www.scientificamerican.com
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