Abstract: A ship-mounted auxiliary sail system featuring a plurality of sail units mountable and movable about the ship on a rail system. The sail units can have automatic reefing safety features and/or automatic mast release safety features.

Abstract: A ship-mounted auxiliary sail system featuring a plurality of sail units mountable and movable about the ship on a rail system. The sail units can have automatic reefing safety features and/or automatic mast release safety features.

Abstract: A sail system comprised of square-rigged sails each set in self-contained units attached to the sides of existing, ocean-going commercial freight ships, which sail system will be deployed in arrays along the sides of the hull of the ship and controlled by proprietary software. The Tig Rig sail system is a roller-blind design of sales, which can reef from full up to full down in increments of one-tenth of the length of the sail drop. The sail system unit has a mast that can rotate and be fixed in position through 360 degrees, which reefing and mast angle can be controlled through control cables, cogs and worm screws in three different ways, in addition to automated reefing and mast release functionality. The Tig Rig sail system is designed to utilize and maximize wind efficiency thereby reducing the reliance on fuel of such ships, with a particular focus on retro-fitting existing ocean-going commercial freight ships.