Definition
Topgallant refers to the section of a sailing ship's mast that is above the topmast and below the royal mast. It also describes the sail set on this mast. Think of it as one of the upper stories of a sailing ship's 'skyscraper'! It's a crucial part of the ship's rigging, contributing to its ability to harness wind power. Topgallant masts and sails were common on larger sailing vessels from the 18th and 19th centuries.