Came across this one that takes a long time to load, and no wonder. It's full of sketches, pictures, videos and text about everything you wanted to know about aircraft escape/survival gadgets and design from the no-way to the currently-in-use. I had to stop for a rest and only got a wee bit down the page.
Ok I'm a dope. Forgot to include the URL and now I have to back track to find it Stand by..
Ok here we go http://www.combatreform.org/escape.htm