Site - Introducing a new vertical axis windmill design for urban and rural applications Windmill Construction Manual. Includes mills for grinding, pumping, and power generation. Windmill with Rotating Sails - Windmill with rotating sails is a new type of windmill. It has a vertical axle around which three sails spin around. Written by Dick Hays and Bill Allen to both entertain and educate you about installing and maintaining a windmill.
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