| 摘要 |
The invention relates to a directional fin with variable incidence, in particular for a sailboard or the like. The fin 2 is integral with the directable arm 12, with which are associated: two springs such as 15 for returning it to the central position, and asymmetric flexible tooth linings 37 for braking its outward oscillations less than its movements returning to the centre. Application: facilitating manoeuvring of the board and reducing the exertion of the board sailer. <IMAGE>
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