Definition
The 'main-topsail' is the sail set above the main sail on a sailing ship, specifically on the main-topmast โต. It's larger than sails set higher up. Think of it as a powerful wing catching the wind. Unlike the mainsail, the main-topsail takes advantage of higher winds. It is important for additional speed and efficiency. The main-topsail contributes to a ship's sailing performance and maneuverability ๐จ.