Spar (sailing)

A spar is a pole of wood, metal or lightweight materials such as carbon fibre used in the rigging of a sailing vessel to carry or support its sail. These include booms and masts, which serve both to deploy sail and resist compressive and bending forces, as well as the bowsprit and spinnaker pole.

In the Age of sail large ships often carried many extra spars of all types for repairs underway, giving rise to the spar deck of a frigate where they were stored.

Sails, spars and rigging

Rigs	Bermuda rig Cat rig Full rig Gaff rig Junk rig Ljungstrom rig Mast aft rig

Sail types	Asymmetrical spinnaker Junk sail Lugsail Parafoil Ringtail Spinnaker Turbosail Rotorsail Wingsail

Sails (sail plan)	Blooper Course Crab claw Driver Extra Fisherman Genoa Gennaker Jib Lateen Mainsail Moonraker Royal Skysail Screecher Spanker Spinnaker Spritsail Staysail Studding Topgallant Topsail Trysail Watersail

Sail anatomy and materials	Clew Foot Head Leech Luff Roach Tack Throat Peak Dacron Technora Kevlar Twaron

Spars	Boom Bowsprit Boomkin Dolphin striker a/k/a Martingale Pelican striker Fore-mast Gaff Jackstaff Jibboom Jigger-mast Jury rigging Main-mast Mast Mizzen-mast Truck Spinnaker pole Spreader Sprit Topmast Yard

Rigging components	Backstay Block Bobstay Boomkicker Braces Buntlines Chainplates Cleat Clevis pin Clewlines Cunningham Deadeye Downhaul Earing Fairlead Forestay Gasket Gooseneck Gunter Guy Halyard Kicker Lazy jack Outhaul Parrel beads Peak Preventer Ratlines Running rigging Shackle Spinnaker chute Standing rigging Sheet Shroud Stay mouse Stays Throat Topping lift Trapeze Traveller Turnbuckle Vang Windex

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