Improved keel for sail boats, comprises structure to vary center of gravity of boat and navigation conditions are adjusted, where manual or automatic unit is provided for displacing or counterbalancing weight by lodging

摘要

The keel comprises a structure to voluntarily vary the center of gravity of a boat. The navigation conditions are adjusted at every concrete instant. The lodging displaces or counterbalances the weight, which varies the center of gravity of the boat by detaching or introducing a hoof. A manual or automatic unit is provided for carrying out the displacement or counterbalancing of weight by the lodging of the keel.