TSS T/T Calshot is a tug tender built in 1929 by John I Thornycroft & Co, and completed in 1930 for the Red Funnel Line. Calshot is one of only three surviving classical tender ships which served the great ocean liners (another famous example is the SS Nomadic, which tendered the ill-fated RMS Titanic on her maiden voyage at Cherbourg, France. The third being the Manchester Ship Canal's ). In her career, Calshot has tendered some of the most famous ocean liners ever built, such as the RMS Caronia, the Cunard Queens RMS Queen Elizabeth and RMS Queen Mary, the SS United States, and the White Star Line ship RMS Olympic. During World War II she was requisitioned by the British Admiralty for servicing troop ships and took part in D-Day. She is a registered vessel of the National Historic Fleet