Spoiler anchoring sail

A dihedral anchoring sail for a sailboat, comprising:

• a first wing;
• a second wing attached to the first wing at a common edge;
• a spoiler attached to the first wing and the second wing at the common edge;
• and
• a plurality of holes and grommets disposed at
• bottom end portions of the spoiler, the first wing and the second wing, and
• a top end portion and a bottom end portion of the common edge, the holes and grommets being removably engageable with fastening means for fastening the dihedral anchoring sail to the sailboat;
• the spoiler, the first wing and the second wing being oriented such that an angle between the spoiler and the first wing and an angle between the spoiler and the second wing are greater than or equal to about an angle between the first wing and the second wing;
• and
• the spoiler, the first wing and the second wing are oriented relative to each other so as to cause a dihedral effect for enabling one wing among the first wing and the second wing.

A method of countering swinging of a sailboat in an anchored position using an anchoring sail, the method comprising:

• pivoting a first wing of the anchoring sail to a first position on the sailboat;
• pivoting a second wing of the anchoring sail to a second position on the sailboat, the second wing being attached to the first wing at a common edge;
• pivoting a spoiler of the anchoring sail to an intermediate position on the sailboat, the spoiler being attached to the first wing and the second wing at the common edge;
• and
• fastening a top end portion of the common edge to a top of a mast of the sailboat;
• the spoiler, the first wing and the second wing being oriented such that an angle between the spoiler and the first wing and an angle between the spoiler and the second wing are greater than or equal to about an angle between the first wing and the second wing,
• wherein the spoiler, the first wing and the second wing cause a dihedral effect for enabling one wing among the first wing and the second wing to offer greater resistance to wind than the other wing.

A spoiler anchoring sail mounted to a sailboat, the spoiler anchoring sail comprising:

• a first wing;
• a second wing attached to the first wing at a common edge;
• and
• a spoiler attached to the first wing and the second wing at the common edge;
• the first wing, the second wing and the spoiler being fastened to structural components of the sailboat so that an angle between the spoiler and the first wing and an angle between the spoiler and the second wing are greater than or equal to an angle between the first wing and the second wing, and the angle between the first wing and the spoiler is adjustable.

A method of countering swinging of a sailboat in an anchored position using an anchoring sail, the method comprising:

• fastening a first wing of the anchoring sail to a first position on the sailboat;
• fastening a second wing of the anchoring sail to a second position on the sailboat, the second wing being attached to the first wing at a common edge;
• fastening a spoiler of the anchoring sail to a third position on the sailboat intermediate the first and second positions, the spoiler being attached to the first wing and the second wing at the common edge;
• and
• fastening a top end portion of the common edge to a fourth position on the sailboat, the fourth position being above the first, second and third positions;
• the spoiler, the first wing and the second wing being oriented so that an angle between the spoiler and the first wing and an angle between the spoiler and the second wing are greater than or equal to an angle between the first wing and the second wing,
• wherein the spoiler, the first wing and the second wing are oriented so that one of the first wing and the second wing offers greater resistance to wind than the other of the first wing and the second wing.