Really good free astronautics book

[benburch]

http://www.askmar.com/Spaceflight/Thrust%20Into%20Space.pdf

I first read this book, by the late Maxwell W. Hunter II, in 1970. He passed a while back and I wondered if I could still get a copy of his book, and found that a revised edition has been placed online.

This is simple enough for the average reader without insulting the intelligence of those who have some technical background.

Enjoy, and I'd love to hear what you think of it.

[benburch]

So? Any comments? :-)