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Re: sailing upwind?

At 13:14 12/31/99 -0800, John M wrote:
...
FWIW, an excerpt from "AUTOGIRO BOATS - History 1980-1995" at
http://www.webstrand.org/yachts/auto/hist4.htm . If true, the claim
that the boat speed was about the same in *any* wind direction would
appear to require that the boat and wind turbine system extracted power
from the wind with virtually no aerodynamic drag.
...
John Mallinckrodt

I wrote a note to Professor Bose inviting him to explain the principle
of his boat's ability to sail into the wind.
If he responds, I'll share.
(I think you'll find any prop made produces some drag - but it could
possibly derive thrust from a wind gradient too. We shall see!)

Thanks again


Brian
brian whatcott <inet@intellisys.net>
Altus OK