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Lockheed Martin is building a quiet supersonic jet for NASA
Lockheed Martin's Skunk Works team has started building the first part of the X-59 Quiet Supersonic Technology aircraft, which could make supersonic commercial travel a reality. The aerospace company is building the jet for NASA's Low-Boom Flight Demonstration program, now that the space agency has committed to a three-year development timeline. Lockheed X-59's long, slender design will allow it to be relatively quiet, creating a sound only as loud as a car door closing whenever it transitions to supersonic speeds. Since it will fly at an altitude of 55,000 feet and at speeds of 940 mph, it's expected to be barely audible.
