Ordered from Armstrong Whitworth in Newcastle, the dry-dock arrived in 1924, a year after Stuart died, and was based at Berth 50. It measured 960 ft (290 m) by 134 ft (41 m) and was the largest such structure in the world. To use the facility, seawater would be allowed into its internal tanks to partially submerge it; a ship sailed in and the water would be pumped out. This raised the dock, taking the ship out of the water for repairs and maintenance. It could accommodate large ships such as the RMS Aquitania, but not very large ships such as the future RMS Queen Mary. The dock was moved to Portsmouth during the Second World War, and in 1959 it was sold to Rotterdam. In 1983 it was sold to Brazil, but it sank on the way there.

From Wikipedia

Number Title Added
2143  -  The Floating Dry-Dock, Southampton. The Largest Floating Dry-Dock In The World. 2143 The Floating Dry-Dock, Southampton. The Largest Floating Dry-Dock In The World. 13 August 2014
2146  -  R.M.S. "Arundel Castle" In The Floating Dry-Dock, Southampton 2146 R.M.S. "Arundel Castle" In The Floating Dry-Dock, Southampton 13 August 2014
2154  -  The Floating Dry-Dock, Southampton. The Largest Floating Dry-Dock In The World. 2154 The Floating Dry-Dock, Southampton. The Largest Floating Dry-Dock In The World. 17 November 2016
2168  -  Harbour Board Offices, Town Quay & Floating Dock, Southampton 2168 Harbour Board Offices, Town Quay & Floating Dock, Southampton 7 June 2014