| 摘要 |
The invention relates to a mobile plane device making it possible to more or less replace the ballast of small craft, due to the possibility of inclining the said plane with respect to the displacement of the boat on the infrastructure of which it is placed (keel Q or centreboard or ballast L for example). It consists of a mobile plane P securely fixed to a spindle AA' separating the said plane into two substantially equivalent surfaces S1 & S2, allowing the displacement from D to D' or D" and from E to E' or E" of the said fin plane, the orientation of which is controlled by shaft and gears or by chain C and gear K, the system being able to be lubricated with oil according to the equivalent levels principle from M to the sealing point F placed beside the load ring B. The plane P is controlled from within H the small craft. <IMAGE>
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