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Concept
Royal Mail Ship
Résumé
Royal Mail Ship (sometimes Steam-ship or Steamer), usually seen in its abbreviated form RMS, is the ship prefix used for seagoing vessels that carry mail under contract to the British Royal Mail. The designation dates back to 1840. Any vessel designated as "RMS" has the right both to fly the pennant of the Royal Mail when sailing and to include the Royal Mail "crown" insignia with any identifying device and/or design for the ship.
It was used by many shipping lines, but is often associated in particular with the White Star Line, Cunard Line, Royal Mail Lines, Union-Castle Line, Canadian Pacific Line, Orient Line and the P&OSNC, which held a number of high-profile mail contracts, and traditionally prefixed the names of many of their ships with the initials "RMS".
While some lines in the past, particularly the Royal Mail Lines, called all their ships "RMS", technically a ship would use the prefix only while contracted to carry mail, and would revert at other times to a standard designation such as "SS".
The most famous ship of this kind is the Titanic. It sank in 1912.
Originally, the British Admiralty operated these ships.
The designation "RMS" has been used since 1840. In 1850 contracts were awarded to private companies. Having the title "RMS" was seen as a mark of quality and a competitive advantage, because the mail had to be on time.
The most valuable route, with the highest volume, was between Kingstown (now Dún Laoghaire), in Ireland, and Holyhead in Wales. The City of Dublin Steam Packet Company (CDSPCo) won the contract. They bought RMS St Columba and RMS Llewellyn from the Admiralty to supplement their Prince Arthur. In the CDSPCo contract, in 1860, there was a penalty clause of £1 1s 4d for every minute's delay.
The Canadian Pacific Railway's trans-Pacific Royal Mail contract required the building of the first three of a fleet of steamships: the , and which regularly sailed between Vancouver and Asia beginning in 1891.
The RMS designation was also used on the ships of the White Star, P&O and Cunard lines of the 19th and 20th centuries.
Source officielle
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