Wingsales retractable Econowind



TwinFoil (Multi element Wing)

Rig dimensions:

Initial installation 8m


The TwinFoil is a non-rotating multi element wing with main wing and an adjustable slotted flap to generate thrust for the ship.

Special Features:

The rig can be lowered during periods of headwind or extremely high winds or during port operations if required.


Econowind: Leonard Springerlaan 7, 9727KB Groningen

The Netherlands 


October 2021



  • This technique was installed on the Tharsis of Tharsis Shipping: go to shipping page
  • Want to know more about how the Ventifoils work: click here


More information:

Visit Econowind               Visit photo gallery

Visit Vessel tracker          Contact Tharsis