SS ''Saint-Laurent'' was an

ocean liner An ocean liner is a type of passenger ship primarily used for transportation across seas or oceans. Ocean liners may also carry cargo or mail, and may sometimes be used for other purposes (such as for pleasure cruises or as hospital ships). The ...

operated by

Compagnie Générale Transatlantique The Compagnie Générale Transatlantique (CGT, and commonly named "Transat"), typically known overseas as the French Line, was a French shipping company. Established in 1855 by the brothers Émile and Issac Péreire under the name ''Compagnie ...

(CGT) in transatlantic service. She was built by the Chantier Scott shipyard in

Saint-Nazaire Saint-Nazaire (; ; ) is a Communes of France, commune in the Loire-Atlantique Departments of France, department in western France, in traditional Brittany. The town has a major harbour on the right bank of the Loire estuary, near the Atlantic Oc ...

, France, and was the first transatlantic ocean liner constructed in France, as well as CGT's first screw-driven liner.Dawson, p. 246Dawson, p. 48 Her design was based on the

Cunard Line The Cunard Line ( ) is a British shipping and an international cruise line based at Carnival House at Southampton, England, operated by Carnival UK and owned by Carnival Corporation & plc. Since 2011, Cunard and its four ships have been r ...

's RMS ''Persia'', albeit adapted to screw propulsion. She was launched in 1866, and entered service on CGT's route between

Le Havre Le Havre is a major port city in the Seine-Maritime department in the Normandy (administrative region), Normandy region of northern France. It is situated on the right bank of the estuary of the Seine, river Seine on the English Channel, Channe ...

and

New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...

, before sailing to Central America later in her career. She operated until 1902, when she was scrapped in Italy. ''Saint-Laurent'' measured 3,413 gross register tons, with a length of and a beam of . She had a passenger capacity of 211—128 in first class, 54 in second class, and 29 in third class. She was originally built with a single

compound steam engine A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages. A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure (HP) cylinder, then having given up heat ...

driving one screw and a three-masted sailing rig, capable of propelling her to a service speed; in 1875 and 1876 she received new triple expansion engines. Her screw propulsion was a major improvement over CGT's existing paddlewheel steamships, and spurred the company to convert most of its fleet in North Atlantic service to screws.

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* {{DEFAULTSORT:Saint-Laurent 1866 ships Ocean liners Ships of the Compagnie Générale Transatlantique Passenger ships of France