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Spinnaker pole

From Wikipedia, the free encyclopedia

A spinnaker pole being used to set a conventional symmetric spinnaker
A spinnaker pole being used to set a conventional symmetric spinnaker

A spinnaker pole is a spar used in sailboats (both dinghys and yachts) to help support and control a variety of headsails, particularly the spinnaker. However, it is also used with other sails, such as genoas and jibs, when sailing downwind with no spinnaker hoisted. (Since the load on a spinnaker pole is very light on this point of sailing, sometimes a special light spinnaker pole called a whisker pole is used in these circumstances.)

The spinnaker pole is rigged to run from the base of the mast, where there is a special fitting for attaching one end of the pole, out to windward over the side of the boat. There, one of the control lines of whichever sail it is to be used with is run through a fitting on the other end of the spinnaker pole. This allows for more precise control of the corner of the sail to which the line is attached.

For a spinnaker, the line attached to the pole is the guy, or brace, and the corner is the tack. For other headsails, such as a jib, the line would be the sheet, attached to the clew.

A special line, the topping lift, runs from the middle of the spinnaker pole up to a block on the mast, and is used to support the weight of the spinnaker pole. Another line referred to as the downhaul or foreguy runs down so that the height of the pole is under positive control at all times.

This page was last edited on 10 February 2021, at 20:12
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