Definition

Noun: A gaff topsail is a specific type of triangular sail used on sailing vessels. It is set above the main gaff sail. Its distinguishing features are that its lower edge (the foot) is attached along the spar called the gaff, and its forward edge (the luff) runs up along the topmast.

Usage

The term is used specifically in nautical contexts to describe a sail's position and rigging on a gaff-rigged ship. * The schooner added a gaff topsail to catch more wind in the light breeze. * Setting the gaff topsail requires climbing partway up the mast.

Advanced Usage

• Historical/Nautical Terminology: The gaff topsail is a classic feature of traditional gaff-rigged sailing ships, such as schooners and some older square-riggers. Its purpose is to increase the total sail area aloft, where winds can be stronger and steadier.

Variants and Related Words

• Topsail (n): A general term for any sail set above the lowest sail on a mast. A gaff topsail is a specific type of topsail.
• Gaff-rigged (adj): Describes a sailing vessel whose principal sails are four-cornered fore-and-aft sails set from a gaff.
• Fore-and-aft sail (n): A sail set along the line of the keel (from front to back) rather than across the vessel (square-rigged). A gaff topsail is a fore-and-aft sail.

Synonyms

• Upper sail (a more general, descriptive synonym).
• Topsail (a broader categorical synonym).

Related Phrases/Idioms

• To set the topsail: A nautical phrase meaning to prepare to get underway or to add more sail. While not exclusive to the gaff topsail, it describes the action of hoisting it.
  • The captain gave the order to set the topsail as the wind picked up.

Noun

1. a triangular fore-and-aft sail with its foot along the gaff and its luff on the topmast