Wingsail and method

A wingsail 101 comprising a first aerofoil 103 having a leading edge 103a at a front of the wingsail and a trailing edge 103b behind the front edge and a second aerofoil 105 having a leading edge 105a and a trailing edge 105b. The leading edge of the second aerofoil is closer than the trailing edge...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	George Frank Jack Thompson
Format:	Patent
Sprache:	eng
Schlagworte:	MARINE PROPULSION OR STEERING PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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Beschreibung
Zusammenfassung:	A wingsail 101 comprising a first aerofoil 103 having a leading edge 103a at a front of the wingsail and a trailing edge 103b behind the front edge and a second aerofoil 105 having a leading edge 105a and a trailing edge 105b. The leading edge of the second aerofoil is closer than the trailing edge of the second aerofoil to a point of maximum cross-sectional width 105c of the second aerofoil. The wingsail is configured such that the leading edge of the second aerofoil can be positioned behind the trailing edge of the first aerofoil. The first aerofoil also comprises an air inlet 107, an air outlet 109 and a channel (119, Fig 8) inside the first aerofoil connecting the air inlet and the air outlet. Air flow from the air inlet is directed by the channel to the air outlet.