Tall Ships Youth Trust (TSYT) is a sail training organisation in the United Kingdom that currently owns and operates four 72ft Challenger yachts and a 55ft ketch.
[1] It was founded in 1956 and is dedicated to the personal development of young people aged 12 to 25 through the crewing of ocean-going yachts.
TSYT used to operate a second sister-ship in addition to Stavros S Niarchos, the Prince William.
However Prince William was removed from operational status at the end of 2007, to make way for the new Challenger yachts.
In 2010 she was sold to the Pakistan Navy and renamed Rah Naward ("Swift Mover").