US Air Force officer and test pilot Chuck Yeager has died at the age of 97. He was the first person to break the sound barrier when he tested the X-1 in October 1947, although the feat was not announced to the public until 1948. CNN's John Berman looks back at his life.
원문출처 : https://www.cnn.com/videos/us/2020/12/08/chuck-yeager-pilot-broke-sound-barrier-death-ldn-vpx.cnn
원문출처 : https://www.cnn.com/videos/us/2020/12/08/chuck-yeager-pilot-broke-sound-barrier-death-ldn-vpx.cnn