NASA’s Chevron Technology Quiets the Skies

Shortly after dawn on March 27, 2001, NASA pilot Bill Rieke took off from an airfield just outside of Phoenix in NASA’s blue-and-white Learjet 25 and flew low over a series of microphones for the first flight test of a groundbreaking NASA technology. On one of the plane’s engines was an experimental jagged-edged nozzle that […]

Published by NASA on 03/11/2025