NASA is 'learning to listen to the X-59' by simulating sonic thumps with fighter jets (photos)

Before NASA's new X-59 supersonic jet can break the sound barrier, scientists had to record equivalent sonic booms to use for reference.

Three NASA F-15 jets on the back ramp at NASA's Neil A. Armstrong Flight Research Center. Left to right:"2nd to None" ,"Mr. Bones" , and workhorse F-15B #836.These recent tests using the agency's"fighter" jets were the third phase of what NASA calls the"Carpet Determination in Entirety Measurements flights," or"CarpetDIEM."

One of 10 ground recording stations set up along a 30-mile stretch of desert to record sonic booms during the third phase of the of CarpetDIEM, Carpet Determination in Entirety Measurements flights.In addition to the microphone ground stations, scientists at Armstrong Flight Research Center installed three weather towers and a sonic anemometer to collect weather and atmospheric data that can be correlated with the recordings of sonic booms that the F-15D and F/A-19 produced.

NASA's X-59 quiet supersonic research aircraft sits on the apron outside Lockheed Martin's Skunk Works facility at dawn in Palmdale, California.If all goes to plan, NASA will take the data it collects during its X-59 testing campaign to the Federal Aviation Administration and international regulators to potentially amend current regulations that prohibit supersonic travel over land.

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