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Eye in a sail's luff near the foot through which a line is passed to increase luff tension and flatten the sail.



Related Terms

ASPECT RATIO

The length of the leading edge of an aerofoil of hydrofoil as compared to its width. Luff and foot of a sail.

TACKLINE

Separating rope line to keep signal flags apart (6 foot long).

SAILING_BOOM

A spar attached to the foot of a fore-and-aft sail.

CLUB FOOT JIB

A jib with a boom or "club" on the foot of the sail.

SWINGING THE ARC

The process of rotating a sextant about the line of sight to the horizon to determine the foot of the vertical circle through a body being observed. Also called ROCKING THE SEXTANT.

HALYARD

Originally, ropes used for hoisting a spar with a sail attached; today, a line used to raise the head of any sail.

DOWNHAUL

A line used to control either a mobile spar, or the shape of a sail. A downhaul can also be used to retrieve a sail back on deck.

SLOOP RIG

one mast, two sails. The mainsail is aft of the mast and a jib forward of the mast, usually attached to the forestay. Spritsail rig - a sprit is a boom that extends upward from the mast foot to the topmost corner of a quadrangle sail. The rig extends the sail area set from a short mast.

FOOT

  1. the lower edge of any sail. 2. the bottom of a mast. 3. a measurement of 12 inches.

GROMMET

1) A brass eye pressed into a sail edge, sack, or canvas to take the wear of a line inserted. 2) An eye formed by opening up a strand.

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