SS Train Ferry No. 1

As Princess Iris
History
Name	1917–1940: TSS Train Ferry No. 1 1940–1942: TSS Iris 1942–1946: TSS Princess Iris 1946–1956: TSS Essex Ferry 1956–1957: TSS Essex Ferry II
Operator	1917–1924: War Office 1924–1934: Great Eastern Railway 1934–1940, 1946–48: London & North Eastern Railway 1940–1946: Royal Navy 1948–1957: British Railways
Port of registry
Builder	Armstrong Whitworth
Yard number	921
Launched	3 August 1917
Completed	November 1917
Out of service	26 February 1957
Fate	Scrapped 1957
General characteristics
Type	Train ferry
Tonnage	2,683 gross register tons (GRT)
Length	350.6 ft (106.9 m)
Beam	58.7 ft (17.9 m)
Depth	15 ft 6 in (4.72 m)
Installed power	403 nhp
Propulsion	2 x triple expansion engines
Speed	12 knots

TSS Train Ferry No. 1 was a Roll-on/roll-off freight vessel built for the British War Office in 1917 to transport rail freight to Europe during World War I.^[1] After the war, it was used for civilian purposes until World War II when it was converted to carry and launch landing craft

After the war, it returned to ferry use and scrapped in 1957.