Category Archives: Wind


Science to Sage magazine features GlobalBEM Conference

by Sterling D. Allan Pure Energy Systems News Kathleen Smith has brought a magazine to my attention that you might want to consider. In the latest issue are several articles…

Land yacht Blackbird
More recent version, with fairing to improve performance

Blackbird Land Yacht Sails Directly Downwind Faster than the Wind

Defying first-blush scientific expectation, last year, the Blackbird set the world’s first certified record for going directly upwind, without tacking, using only power from the wind, going upwind about 2.1…