On December 7, according to foreign media reports, legendary American pilot Chuck Yeager passed away. He shot down five German planes in a single day and 13 enemy planes during World War II. After World War II, Yeager served as a test pilot in the Bell X-1, the first supersonic aircraft, and became the first human being to break the speed of sound by breaking the conventional wisdom of flight, and after his death, NASA’s Administrator issued a letter of condolence, thanking him for his contributions to mankind’s exploration of the unknown.
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