
Technical Specifications
Overview
TSS T/T Calshot was a tug tender built in 1929 by John I Thornycroft & Co, and completed in 1930 for the Red Funnel Line. Calshot was one of only three surviving classical tender ships which served the great ocean liners, another 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 Daniel Adamson. 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 was a registered vessel of the National Historic Fleet of the United Kingdom, holding Certificate No. 1.
Composite Risk
Multiple adverse factors, or a hard ship-specific signal, lift this hull above the fleet norm.
A coverage-weighted blend of the single component we could read for this hull; the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. This headline is flagged low-confidence (a thin or structural-only read) and should not be treated as a verdict. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.
Commercial
Price it in the Route Planner between any two commercial ports: ballast and laden legs, two fuels at live bunker prices, port and canal costs, the weather on the way, and the TCE set against the market.

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