Patent ID: 8215871

Claim:
A hydrofoil anchoring system for use in a tideway comprising: a socket disposed in the sea-bed of a tideway; an anchor equipped with a plug to lock the anchor into said socket when the anchor is inserted therein; said anchor further equipped with a first and a second hydrofoil to translate force from tidal flow into downward pressure to assist in the adherence of said anchor to said sea-bed; each of the first and second hydrofoils comprise a substantially horizontal plane to which the hydrofoils are rotatable about, wherein the substantially horizontal plane is substantially parallel to said sea-bed; a flow reversal means to rotate the hydrofoils to face into the force of said tidal flow; a wingspan modifying means to increase or decrease the effective surface area of the first hydrofoil, wherein said wingspan modifying means is actuated by the force of said tidal flow acting on the second hydrofoil.