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A screw steamer or screw steamship (abbreviated "SS") is an old term for a steamship or steamboat powered by a steam engine, using one or more propellers (also known as screws) to propel it through the water. Such a ship was also known as an "iron screw steam ship".
Steam-powered ships were named with a prefix designating their propeller configuration i.e. single, twin, triple-screw. Single-screw Steamship SS, Twin-Screw Steamship TSS, Triple-Screw Steamship TrSS. Steam turbine-driven ships had the prefix TS. In the UK the prefix RMS for Royal Mail Steamship overruled the screw configuration prefix. [11]
SS Archimedes was a steamship built in Britain in 1839. She was the world's first steamship to be driven successfully by a screw propeller. [1] [2] [3] [4] [5 ...
A twin-screw steamer (or steamship) (TSS) is a steam-powered vessel propelled by two screw propellers, one on either side of the plane of the keel. [1] Arrangement
Retvisan 84 (1855) (completed as screw) - Converted to sail 1863, to target vessel 1874, decommissioned 1880 Imperator Nikolai I 111/109 (1860) (screw) - Decommissioned 1874 Tsesarevitch 135/115 (1857) - Transferred to the Baltic Fleet 1858-1859, converted to screw 1860, decommissioned 1874
Screw-driven steamships generally carry the ship prefix "SS" before their names, meaning 'Steam Ship' (or 'Screw Steamer' i.e. 'screw-driven steamship', or 'Screw Schooner' during the 1870s and 1880s, when sail was also carried), paddle steamers usually carry the prefix "PS" and steamships powered by steam turbine may be prefixed "TS" (turbine ship).
Stevens' ship was engineered as a twin-screw-driven steamboat in juxtaposition to Clermont ' s Boulton and Watt engine. [15] The design was a modification of Stevens' prior paddle steamer Phoenix, the first steamship to successfully navigate the open ocean in its route from Hoboken to Philadelphia. [16] In 1812, Henry Bell's PS Comet was ...
Russian steam corvette Vityaz HMS Birkenhead was laid down as a steam frigate, but made redundant by screw-driven propulsion before her completion in 1845.. Steam frigates (including screw frigates) and the smaller steam corvettes, steam sloops, steam gunboats and steam schooners, were steam-powered warships that were not meant to stand in the line of battle.