ADAPTATION OF THE PRINCIPLE OF SUSTAINER PLAN TO THE CHARACTERISTICS OF SAILBOARDS BY MEANS OF SPECIFIC GEOMETRY IN M CIRCUMFLEX

摘要

This device is composed of two planes sustaining inclined downwards from a binding on a traditional fin of a sailboard. The specific shape of the invention, a combination of angles in the form of a "m " seen from above (3) and in the form of a circumflex accent, seen from the front (1), makes it possible to maintain a stable equilibrium in the navigation in which the supports which are similar to the navigation with a traditional fin. The submerged surface of the support planes decreases with increasing the speed, in order to promote the speed increase. It is fixed in the case of the fin of the sail board, and improves the performance.