Stavros S Niarchos is a British brig-rigged tall ship owned and operated by the Tall Ships Youth Trust (TSYT). She is primarily designed to provide young people with the opportunity to undertake voyages as character-building exercises, rather than pure sail-training. She is also used for adult voyages and holidays, which help subsidise the operation of the ship.
Stavros S Niarchos is a brig, that is a two masted vessel with square sails on both masts. She carries five yards on each mast (moving up: Course, Lower Topsail, Upper Topsail, Topgallant and Royal), and a total of 18 sails. In good conditions she has managed speeds of just over 13 knots (24 km/h; 15 mph).