ThinAirDesigns wrote:
JohnF, as an addition to my post above, watch this video at about the
1:00 minute point.
http://www.youtube.com/watch?v=EEuAqq8FINw

The video I found most compelling was
http://www.youtube.com/watch?v=Vjt6G8D4x0k
showing a model making forward progress on a treadmill.
See the sci.physics.research thread "Downwind faster than the wind???"
I mentioned earlier for a full discussion. Harald explained how
my "physically impossible" argument was wrong, and that video
most clearly demonstrates a practical model.
--
John Forkosh ( mailto: where j=john and f=forkosh )