The Schilling is a one-piece balanced rudder incorporating slip-stream guide plates and a hydrodynamic profile designed to impart a high lift coefficient. It permits, without stall, the use of rudder angles up to 75 degrees. At this maximum helm, the propeller slipstream diverts 90 degrees or more, permitting a quite dramatic degree of course alteration and, when the vessel is maneuvering at rest, enables turning within its own length. In addition, the twin rudder model demonstrated its ability to "crash" stop a vessel by the turning of each rudder to the outboard position; with the propeller continuing to rotate ahead at full power, the model's stopping distance appeared to be well within the claimed decrease of 40%-50%. Theoretically there is no limit to the size of ship to which the rudder could be fitted. Twin Schilling rudders have been specified for building this year for a 3,000 D.W.T. support vessel and for the retrofit conversion of a 25,000 D.W.T. tanker. An added benefit of the rudder, not yet fully explained theoretically, is the apparent stabilization of the ship's wake, which appears to cut propeller-induced vibration.

  • Corporate Authors:

    IPC Industrial Press Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1978-7

Media Info

  • Pagination: p. 30
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00189276
  • Record Type: Publication
  • Source Agency: Israel Shipping Research Institute
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM