On Feb 18, 1:56*pm, Andrew Longhurst
wrote:
This one is quite informative...but then I am biased as I made it!

http://www.youtube.com/watch?v=H_lmjq_qd20

Yes, that's good for this purpose.

It would be ideal if it had a winch launch, some thermalling with
other gliders and thermalling with birds, but hey, you can't have
everything!