Boom (windsurfing)

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A boom in the context of windsurfing is a piece of equipment that attaches to the mast, providing structural support for the sail. Early booms were tied on to the mast using rope, but most newer booms use a clamp mechanism for attachments. Booms are commonly made from aluminum, or carbon fibre, and are often referred to as a wishbone boom due to their symmetrical shape. Windsurfers use the boom to maneuver the rig, either by directly gripping it in their hands, or through the use of harness lines.

A windsurfer rigging a boom (with harness lines attached) to a sail.

A boom can also have an adjustable outhaul system for use when racing. The outhaul is pulled on when going on upwind to allow better height upwind and then let off downwind for more power and the ability to go deeper (further away from the wind).

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