A wingsail comprising: a first aerofoil having a leading edge at a front of the wingsail and a trailing edge behind the front edge; and a second aerofoil having a leading edge and a trailing edge, the leading edge of the second aerofoil being closer than the trailing edge of the second aerofoil to a point of maximum cross-sectional width of the second aerofoil; wherein the wingsail is configured such that the leading edge of the second aerofoil can be positioned behind the trailing edge of the first aerofoil; wherein the first aerofoil comprises: an air inlet; an air outlet; a channel inside the first aerofoil connecting the air inlet and the air outlet; wherein air flow from the air inlet is directed by the channel to the air outlet.
WINGSAIL AND METHOD
FLÜGELSEGEL UND VERFAHREN
VOILE EN FORME D'AILE ET PROCÉDÉ
2023-12-06
Patent
Elektronische Ressource
Englisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |