LMS Jubilee Class 45699 Galatea was built at Crewe in April 1936.
The engine was named Galatea after HMS Galatea, which in turn was named after the Galatea of mythology, the Goddess of Calm Seas. After nationalisation in 1948, it was renumbered 45699 by British Railways.
After being withdrawn in 1964 it was stored at Eastleigh Works in December 1964 and remained there until January of the following year when it was moved by rail to Barry Scrapyard, Galatea was rescued in 1980 from Woodham Brothers scrapyard in Barry, South Wales by the late Brian Oliver and was moved to The Severn Valley Railway originally to provide a spare boiler for preserved sister engine 45690 Leander.
It made a return to steam in April 2013 on test runs around the Hellifield circle. Galatea made its railtour debut on 19 May 2013 working a private charter from King's Lynn to Norwich.
It is now operational on the main line running steam specials, and as of 2014 is in British Railways maroon livery.
Whilst this locomotive is rostered for the steam hauled sections of the trip listed, it cannot be guaranteed and may be substituted for a different engine.