A retractable foil mechanism (10) for use in an aquatic vessel is provided comprising: a foil (16, 17) arranged to extend substantially parallel to a first axis (12) when in a retracted position; a rotation axis (36) about which the foil (16, 17) can rotate; means for causing an acting force (F) to act on the foil (16, 17) in a first direction parallel to the first axis (12) so as, in use, to move the foil (16, 17) and the rotation axis (36) in the first direction; and a moment creation arrangement configured such that, in use, the acting force (F) on the foil (16, 17) creates a moment which causes the foil (16, 7) to rotate about the rotation axis (36) while the rotation axis (36) is moving in the first direction.
Retractable foil mechanism
19.12.2019
Patent
Elektronische Ressource
Englisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |