The design of a windmill developed for the propulsion of a 5m hydrofoil trimaran is described. A method is presented for the calculation of windmill performance. The method is adapted from screw vortex theory and applied to the special case of a windmill mounted as a propulsion device on a moving vehicle. Using this theory, a study is made to ascertain the optimal geometry for the windmill. Considerations include windmill solidity, blade sections and pitch/diameter settings. Performance curves are presented for the windmill under consideration. Finally, a comparison is made between the predicted performance of the windmill when applied to the trimaran and the performance realized when the boat operates using cloth sails. This last study provides a means of assessing the value of a windmill against the well-proven success of cloth sails. The theory and arguments used are believed to be applicable to larger installations that may be considered for the propulsion of commercial ships.

Media Info

  • Features: References;
  • Pagination: 12p., incl. discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00657915
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM