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DUCTHELIOS, an Energy Saving Device (ESD) by Glafcos.

DUCTHELIOS adopts each vessel’s characteristics in order to provide tailor-made solutions.

A Glafcos Energy Saving Design - supported and validated by the University of Strathclyde, Department of Naval Architecture and Marine Engineering.


  • Decreasing the axial flow velocity

  • Providing fuel-saving up to 7% for new and existing full-form ships

  • Equalization propeller’s inflow

  • Decreasing rotational losses in the slipstream

  • Small improvement in propulsion efficiency

View brochure

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