The downhaul is a
line which is part of the
rigging on a
sailboat; it applies downward force on a
spar or
sail. The most common downhaul on a modern sailboat is attached to the
spinnaker pole, although the term is also commonly applied to the
cunningham on the
mainsail.The spinnaker pole downhaul may be referred to as the
foreguy in some rigging nomenclature.In a
windsurfing rig, the downhaul is the primary load-bearing line which controls the sail's shape. Modern windsurfing sails incorporate a sleeve for the mast, and therefore do not have a
halyard which tensions the top of the sail. The downhaul is tensioned early in the rigging process and is generally not adjustable on the water, and is therefore rather different in use than the downhaul on a sailboat.
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