On Tue, 20 Nov 2012 17:29:04 -0500, wrote:

On Mon, 19 Nov 2012 11:00:38 -0500, Wayne.B
wrote:

https://www.youtube.com/watch?featur...v=wnjyusAgk8I#

Wind speed was reported at 20 to 25 knots.

It is impossible to sail faster than the wind.

===

Not so. Wind surfers do it all the time, as do lightweight multi
hulls. Ice boats have been doing it for 100 years.

More correctly stated, it is impossible to sail faster than the wind
in a dead down wind direction, at least on the water. A team of
engineers recently managed to sail faster than the wind, dead down
wind, in a specially designed land sailor on salt flats.

It's all about the addition of force vectors.