“On this date in 1963 Captain Joe Walker flew the North American X-15A to an altitude of 271,000 feet. Having flown higher than 50 miles, he qualified for astronaut wings.”
Only The Space Shuttle ‘flew’ Faster Than This Rocket Plane Designed With A Slide Rule
![](https://i0.wp.com/avgeekery.com/wp-content/uploads/2017/04/x151.png?fit=800%2C642&ssl=1)
Queue the theme song/video to Star Trek ‘Enterprise’ …