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St. Lawrence Seaway
The St. Lawrence Seaway (Voie maritime du Saint-Laurent) is a system of canals and locks opened in 1959, carrying ocean ships from the Atlantic to Lake Superior.
Stad Amsterdam
Stad Amsterdam is a three-masted steel-hulled clipper built in Amsterdam between 1997 and 2000, serving as the official flagship of the city and the SAIL Amsterdam festival.
Standard Carrier Alpha Code
The Standard Carrier Alpha Code (SCAC) is a unique two-to-four-letter code identifying transportation companies, issued by the National Motor Freight Traffic Association and required in US Customs filings.
Star Ferry
The Star Ferry (天星小轮) is a passenger ferry service crossing Victoria Harbour between Hong Kong Island and Kowloon, run under the same name since 1898.
Star of India (ship)
The Star of India is an iron sailing ship launched in 1863 as Euterpe, now preserved at the Maritime Museum of San Diego as the world's oldest active sailing ship.
Staten Island Ferry
The Staten Island Ferry is a free passenger ferry between Staten Island and Lower Manhattan, run by New York City since 1905, carrying 16 million riders a year.
Statsraad Lehmkuhl
Statsraad Lehmkuhl is a Norwegian three-masted steel barque launched in Bremerhaven, Germany in 1914 as a German training ship, now based in Bergen as Norway's largest sailing ship in service.
Stavros Niarchos
Stavros Niarchos (Σταύρος Νιάρχος) was a Greek shipping tycoon who was the world's largest independent shipowner by 1964, a rival of Aristotle Onassis, and founder of the Stavros Niarchos Foundation.
Stealth ship
A stealth ship, or stealth boat, is a naval vessel built to reduce radar, infrared, acoustic, and magnetic signatures to avoid detection and preserve surprise.
Steamboat
A steamboat is a boat propelled by a steam engine, usually with paddle wheels; it dominated river transport in North America and Britain in the nineteenth century.
Steamship
A steamship is a ship propelled by a steam engine or turbine rather than sails, displacing sail in commercial shipping almost entirely by the early twentieth century.
Stede Bonnet
Stede Bonnet, known as the Gentleman Pirate, was a Barbadian planter who turned pirate in 1717, sailed with Blackbeard, and was hanged at Charleston in 1718.
Stena Bulk
Stena Bulk is a Swedish tanker shipping company founded in 1982, headquartered in Gothenburg, and part of the Stena Sphere, with a fleet of roughly 60 to 70 vessels.
Stena Line
Stena Line is a Swedish ferry operator founded in Gothenburg in 1962 by Sten A Olsson, running ferries on routes across Northern Europe and the Mediterranean.
Stern
The stern, also known as the ship's stern, is the after end of a ship or boat, farthest from the bow, housing the rudder and propeller shaft; common forms include cruiser and transom sterns.
Sternwheeler
A sternwheeler is a steam-powered riverboat driven by a single paddle wheel at the stern, whose shallow draft made it the standard freight and passenger carrier on western North American rivers.
Stevedore
A stevedore is a person or company engaged in loading and unloading cargo between ship and shore; in American usage the word often means the contracting companies employing longshoremen.
Steward's department
The steward's department, also known as the catering or galley department, is the shipboard department of cooks, wait staff, housekeeping, and entertainment personnel, headed by the Chief Steward.
Stolt-Nielsen
Stolt-Nielsen is a Norwegian-founded, London-headquartered shipping and logistics group founded in 1959 by Jacob Stolt-Nielsen, inventor of the parcel tanker, with businesses in tankers, terminals, and aquaculture.
Strategic sealift ships
Strategic sealift ships, also called Maritime prepositioning ships, are cargo vessels that move military equipment and supplies across oceans, carrying over 90 percent of cargo when the United States deploys forces.
Strip theory (seakeeping)
Strip theory, also called strip method or slender body theory, is a linear hydrodynamic method for predicting ship motions and wave-induced loads in waves, standard since the 1950s.
Sturgeon-class submarine
The Sturgeon class was a class of 37 United States Navy nuclear-powered attack submarines, built between 1963 and 1975 as a quieter refinement of the Thresher/Permit class for Cold War anti-submarine warfare.
Submarine
A submarine is a watercraft capable of operating fully submerged, using ballast tanks to dive and surface while carrying its own power plant, air supply, and weapons.
Submarine aircraft carrier
A submarine aircraft carrier is a submarine carrying and launching floatplanes, used by several navies between the world wars and deployed in quantity by Japan in World War II.
Submarines in the United States Navy
The US Navy's submarines, also called the US Submarine Force, are nuclear-powered vessels in four classes totaling about 67 boats, performing attack, strike, and nuclear deterrence missions.
Suezmax
Suezmax is a size class of crude oil tanker, the largest that can transit the Suez Canal fully laden, generally 120,000 to 200,000 tonnes deadweight.
Sultana (steamboat)
The Sultana, also known as SS Sultana, was a Mississippi River steamboat that exploded near Memphis in April 1865, killing about 1,547 people in America's worst maritime disaster.
Sun Princess (2024)
Sun Princess is a cruise ship delivered to Princess Cruises in 2024 by Fincantieri in Italy, the largest ship ever built in Italy and the lead Sphere-class vessel.
Superstructure (ship)
A superstructure is the decked structure above a ship's main deck, extending side to side and housing the bridge, accommodation, masts, and stacks; aircraft carriers carry theirs as an island.
Superyacht
A superyacht, also known as a megayacht, is a large, professionally crewed private pleasure yacht, typically 24 meters or longer; the longest, Azzam, exceeds 180 meters.