Being able to fly off on holiday is
something we may take for granted. But how does the big metal tube
you're flying in stay up in the air? We'll find out in the latest Naked
Science Scrapbook. Plus we'll see that if the plane's engines stop
working, you won't just plummet out of the sky...

http://www.thenakedscientists.com/HTML/podcasts/scrapbook/show/2011.07.12/