Chuck Yeager

So if it's not ours, it's somebody's who's is it. What's the X 15 X 15 is a rocket powered aircraft. So right on the heels of the supersonic age. We had just brought the X one was the experimental aircraft that Chuck Yeager used to break the sound barrier for the first time.

X-15, Chuck Yeager, exactly. And so there's an article in 1956 where they're saying we're going to beat gravity.

So they broke the sound barrier in 1947 X 15 X 15 Chuck Yeager exactly and so there's an article in 1956 where they're saying