Bermuda rig

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Diagram of a Bermuda or Marconi rig, in this case a typical monohull sloop
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Diagram of a Bermuda or Marconi rig, in this case a typical monohull sloop

The term Bermuda rig refers to a configuration of mast and rigging for a type of sailboat and is also known as a Marconi rig; this is the typical configuration for most modern sailboats.

The rig consists of a triangular sail set aft of the mast with its head raised to the top of the mast; its luff runs down the mast and is normally attached to it for its entire length; its tack is attached at the base of the mast; its foot controlled by a boom; and its clew attached to the aft end of the boom, which is controlled by its sheet.

Originally developed for the Bermuda sloop, the Bermuda sail is either set as a mainsail on the main mast, or as the course (the principal sail) on another mast. The Bermuda rigging has largely replaced the older gaff rigged fore-and-aft sails, except notably on schooners.

A Bermuda rigged sloop with exactly one jib is known as a Bermuda sloop, Marconi sloop or Marconi rig. Bermuda sloop can also refer to a more specific type of vessel.

The foot of a Bermuda sail may be attached to the boom along its length, or in some modern rigs the sail is attached to the boom only at its ends. This modern variation of a Bermuda mainsail is known as a loose-footed main.

The main controls on a Bermuda sail are:

  • The halyard used to raise the head, and sometimes to tension the luff.
  • The outhaul used to tension the foot by hauling the clew towards the end of the boom.
  • The sheet used to haul the boom down and towards the center of the boat.
  • The vang or kicking strap which runs between a point partway along the boom and the base of the mast, and is used to haul the boom down when on a run.