I imagine some old NASA fans hang out here - anyone familiar with the Curious Droid YouTube channel?
https://www.youtube.com/channel/UC726J5A0LLFRxQ0SZqr2mYQ
Fun insights, everything you never thought you’d want to know about the early manned space program and such.
If not, check it out.
Come on, gotta be some NASA fans around here. 
OK. That was cool. Well worth the 10 minute run time. I learned some things about the program, even though I’m old enough to remember it. Seems we never would have made it to space without the X-15.