Self activating keel

Details Self activating keel Self activating keel

1989-11-14

1991-04-23

Peters, Jr., Joseph F.

Ships

Keels

Rocking

114137, B63B 4100

Patent

active

050091786

ABSTRACT:
A keel system for small sailboats. The keel system being comprised of two fins (20P) and (20S) that are allowed to swing on pivots (24) independently, between the hull on which they are mounted and a limiting surface (25). The deployment of fins (20P) and (20S) is controlled by natural hydrodynamic forces acting on activating surface (38) and deactivating surface (36) of tabs (22) built into the tip of fins (20P) and (20S). The invention provides directional stability and improved performance for a boat on all points of sail without the need for crew intervention or interior hull structures.

REFERENCES:
patent: 595161 (1897-12-01), Gibb

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