If screw-driven steamships generally carry the prefix 'SS' before their names, what type of steamers carry the prefix 'PS'?
"Ship prefix A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship. Prefixes for civilian vessels may either identify the type of propulsion, such as ""PS"" for paddle steamer, or purpose, such as ""RV"" for research vessel. Civilian prefixes are often used inconsistently, and frequently not at all. Sometimes a slash is used to separate the letters, as in ""M/S"". Naval prefixes came into use as abbreviations for longer titles, such as ""His/Her Majesty's Ship"" in the British Royal Navy, abbreviated ""H.M.S."" and then ""HMS"". Earlier uses often"
"the early 1850s. This was superseded at the beginning of the 20th century by floating pad bearing which automatically built up wedges of oil which could withstand bearing pressures of 500 psi or more. 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. See Ship prefix The first steamship credited with crossing the Atlantic Ocean between North America and Europe was the American"
"(Motor Vessel, powered by diesel), ""MT"" (Motor Tanker, powered vessel carrying liquids only) ""FV"" Fishing Vessel and ""SS"" (Screw Streamer, driven by propellers or screws, often understood to stand for Steamship). ""TS"", sometimes found in first position before a merchant ship's prefix, denotes that it is a ""T""urbine ""S""teamer. (For further discussion, see Ship prefixes.) Famous cargo ships include the Liberty ships of World War II, partly based on a British design. Liberty ship sections were prefabricated in locations across the United States and then assembled by shipbuilders in an average of six weeks, with the record being just over"
"Screw steamer A screw steamer or screw steamship is an old style 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'. In the 19th century, this designation was normally used in contradistinction to the paddle steamer, a still earlier form of steamship that was largely, but not entirely, superseded by the screw steamer. The screw or propeller was first developed by Swedish inventor John Ericsson for the U.S. Navy. Ericsson was"
"he called American television ""a vast wasteland"". The ship prefix ""S.S."" is used for ships that are powered by steam. However, incidents within the show have at different times implied the ""Minnow"" has either a gasoline engine, as in an episode where the Professor is trying to make spark plugs for the engine out of sea shells, or a diesel engine, as in a scene where, after the castaways use home-made glue to repair the boat, all its boards spring off, revealing what appears to be such an engine. Therefore the correct ship prefix should be either ""M.V."" (motor vessel)"
"Steam-powered vessels Steam-powered vessels include steamboats and steamships. Smaller steamboats were developed first. They were replaced by larger steamships which were often ocean-going. Steamships required a change in propulsion technology from sail to paddlewheel to screw to steam turbines. The latter innovation changed the design of vessels to one that could move faster through the water. Engine propulsion changed to steam turbine in the early 20th century. In the latter part of the 20th century, these, in turn, were replaced by gas turbines. Steamship generally refers to larger steam-powered ships, usually ocean-going, capable of carrying a (ship's) boat. The engine"
"the principal designer of the monitor class of vessels. Many famous ships were screw steamers, like the RMS Titanic and RMS Lusitania. These massive leviathans had three or four propellers. Ships under two-hundred meters usually only had two or one propellers. Screw steamer A screw steamer or screw steamship is an old style 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'. In the 19th century, this designation was normally used"
"Royal Mail Ship 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 to fly both 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"
"the ship prefix SY, but some were alternatively described as ""screw schooner"", if they carried schooner rig. A fine example of the screw schooner is the 125 year old British ""Amazon"", built at Southampton in 1885 from designs by the renowned Dixon Kemp and still in use in the USA after crossing the Atlantic in 2009, although Diesel-propelled since 1937. She was photographed on Columbus Day 2009 on a mooring near the Herreshoff Marine Museum in Bristol, Rhode Island. ""Aurora"" built by Alexander Stephen & Sons Ltd, Glasgow in 1876 (a former whaling-yacht turned Antarctic exploration vessel) is a notable"
"was mentioned by class, such as ""S.M. Kleiner Kreuzer Emden"" (""His Majesty's Light Cruiser Emden""). Special forms included In the Swedish Navy (formerly the Royal Swedish Navy), all vessels are given the prefix ""HMS"" (Hans or Hennes Majestäts Skepp). This is true for both surface and submarine vessels. Abroad, Swedish navy ships are sometimes given the prefix ""HSwMS"" (for ""His Swedish Majesty's Ship""), to avoid confusion with other uses of the HMS prefix. Her Majesty's Ship His or Her Majesty's Ship, abbreviated HMS, is the ship prefix used for ships of the navy in some monarchies. Derived terms such as"
"such as ""MV"" for ""motor vessel"", so it is not correct to use ""SS"" for most modern vessels. As steamships were less dependent on wind patterns, new trade routes opened up. The steamship has been described as a ""major driver of the first wave of trade globalization (1870–1913)"" and contributor to ""an increase in international trade that was unprecedented in human history."" The steamship was preceded by smaller vessels designed for insular transportation, called steamboats. Once the technology of steam was mastered at this level, steam engines were mounted on larger, and eventually, ocean-going vessels. Becoming reliable, and propelled by"
"ships, including the oiler, minesweeper, patrol boat, hydrographic and oceanographic survey ship and tender. During the age of sail, the ship categories were divided into the ship of the line, frigate, and sloop-of-war. Naval ship names are typically prefixed by an abbreviation indicating the national navy in which they serve. For a list of the prefixes used with ship names (HMS, USS, LÉ, etc.) see ship prefix. Today ships are significantly faster than in former times, thanks to much improved propulsion systems. Also, the efficiency of the engines has improved, in terms of fuel, and of how many sailors it"
"for carrying the cargo. Generally, the modern ocean shipping business is divided into two classes: Larger cargo ships are generally operated by shipping lines: companies that specialize in the handling of cargo in general. Smaller vessels, such as coasters, are often owned by their operators. A category designation appears before the vessel's name. A few examples of prefixes for naval ships are ""USS"" (United States Ship), ""HMS"" (Her/His Majesty's Ship), ""HMCS"" (Her/His majesty's Canadian Ship) and ""HTMS"" (His Thai Majesty's Ship), while a few examples for prefixes for merchant ships are ""RMS"" (Royal Mail Ship, usually a passenger liner), ""MV"""
"United States Ship United States Ship (abbreviated as USS or U.S.S.) is a ship prefix used to identify a commissioned ship of the United States Navy and applies to a ship only while it is in commission. Before commissioning, the vessel may be referred to as a ""pre-commissioning unit"" (PCU), but is officially referred to by name with no prefix. After decommissioning, it is referred to by name, with no prefix though commonly, people refer to those ships with the prefix Ex-U.S.S. In service but non-commissioned Navy ships go by the prefix USNS, which stands for United States Naval Ship."
"was provided by diesel rather than steam. The carries the designation RMV for Royal Mail Vessel and is the only active RMV. Those highlighted are still in service with the status of Royal Mail Ship. Royal Mail Ship 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 to fly both the pennant of the Royal Mail when sailing and to include the Royal"
"1920, the ship's name would have been both written and pronounced ""USS ""Minnesota"" (BB-22)"". In generally decreasing size, the types are: Submarines are all self-propelled submersible types (usually started with SS) regardless of whether employed as combatant, auxiliary, or research and development vehicles which have at least a residual combat capability. While some classes, including all diesel-electric submarines, are retired from USN service, non-U.S. navies continue to employ SS, SSA, SSAN, SSB, SSC, SSG, SSM, and SST types. With the advent of new Air Independent Propulsion/Power (AIP) systems, both SSI and SSP are used to distinguish the types within the"
"SS Archimedes SS ""Archimedes"" was a steamship built in Britain in 1839. She is notable for being the world's first steamship to be driven by a screw propeller. ""Archimedes"" had considerable influence on ship development, encouraging the adoption of screw propulsion by the Royal Navy, in addition to her influence on commercial vessels. She also had a direct influence on the design of another innovative vessel, Isambard Kingdom Brunel's , then the world's largest ship and the first screw-propelled steamship to cross the Atlantic Ocean. The principle of moving water with a screw has been known since the invention of"
"in 1970. A United States Navy ship that is not in active commission does not hold the title of United States Ship with simply the name without prefix used before and after commissioned service. Vessels, such as yard and harbor craft that are not commissioned and ""in service"" are officially referred to by name or hull number without prefix. Military Sealift Command (MSC) civilian manned ships ""in service"" are given the prefix United States Naval Ship (USNS). Prior to commissioning, ships may be described as a pre-commissioning unit or PCU; for example, the uncommissioned has been described as the ""pre-commissioning"
"USN, but SSP has been declared the preferred term. SSK, retired by the USN, continues to be used colloquially and interchangeably with SS for diesel-electric attack/patrol submarines within the USN, and, more formally, by the Royal Navy and British firms such as Jane's Information Group. Patrol combatants are ships whose mission may extend beyond coastal duties and whose characteristics include adequate endurance and sea keeping, providing a capability for operations exceeding 48 hours on the high seas without support. This notably included Brown Water Navy/Riverine Forces during the Vietnam War. Few of these ships are in service today. Amphibious warfare"
"accessible, though her facilities are not. a. SY is a ship prefix standing for steam yacht. When ""Tern""s steam engines were replaced by diesel motors in 1956, the MY prefix, motor yacht, became appropriate. The prefix MV, motor vessel, is also used. b. The steam launches ""Dolly"" and ""Esperance"", and the steam barge , all in the collections of , are older, but have been out of service as museum exhibits for many years. SY Tern SY ""Tern, now operating as MY ""Tern, is a passenger vessel on Windermere, England. Launched in 1891 she was built for the steamer service"
"by S.P. Austin & Co. in July 1936. She was named after the engineer Sir Charles Parsons (1854–1931), whose invention of the steam turbine and improvement of dynamo design greatly improved electricity generation. SS ""George Balfour"" was a 1,568 GRT collier and ""Charles Parsons"" sister ship, launched by S.P. Austin & Co. in April 1937. She was named after the mechanical and electrical engineer George Balfour (1872–1941), who co-founded Balfour Beatty. SS ""Leonard Pearce"" (I) was a 1,571 GRT collier launched by S.P. Austin & Co. in June 1938. She was named after Sir (Standen) Leonard Pearce (1873–1947), who was"
"Platform supply vessel A platform supply vessel (often abbreviated as PSV) is a ship specially designed to supply offshore oil and gas platforms. These ships range from 50 to 100 meters in length and accomplish a variety of tasks. The primary function for most of these vessels is logistic support and transportation of goods, tools, equipment and personnel to and from offshore oil platforms and other offshore structures. In the recent years a new generation of Platform Supply Vessel entered the market, usually equipped with Class 1 or Class 2 Dynamic Positioning System. They belong to the broad category of"
"approved for use in identifying units commissioned into the RAN. The prefix had been used prior to formal approval, with the torpedo-boat destroyer commissioned with the HMAS prefix on 1 March 1911. The prefix now refers to the King or Queen of Australia, who is also the British monarch. The first word of the prefix changes depending on the gender of the reigning monarch of Australia. Her Majesty's Australian Ship Her or His Majesty's Australian Ship (HMAS) is a ship prefix used for commissioned units of the Royal Australian Navy (RAN). This prefix is derived from HMS (Her/His Majesty's Ship),"
"Her Majesty's Ship His or Her Majesty's Ship, abbreviated HMS, is the ship prefix used for ships of the navy in some monarchies. Derived terms such as ""HMAS"" and equivalents in other languages such as ""SMS"" are used. In the British Royal Navy, the prefix was originally always quoted in full; the first recorded use of the abbreviated form, ""HMS"", occurred in 1789 in respect of HMS ""Phoenix"". From 1707 to c1800 HBMS (for His Britannic Majesty's Ship) was also used. Submarines in Her Majesty's service also use the prefix ""HMS"", standing for ""Her Majesty's Submarine"". The Royal Yacht ""Britannia"","
"SR West Country and Battle of Britain classes The SR West Country and Battle of Britain classes, collectively known as Light Pacifics or informally as ""Spam Cans"", are air-smoothed 4-6-2 ""Pacific"" steam locomotives designed for the Southern Railway by its Chief Mechanical Engineer Oliver Bulleid. Incorporating a number of new developments in British steam locomotive technology, they were amongst the first British designs to use welding in the construction process, and to use steel fireboxes, which meant that components could be more easily constructed under wartime austerity and post-war economy. They were designed to be lighter in weight than their"
"of them died in death camps during World War II. These events, known as the ""Voyage of the Damned"" in one account, have inspired film, opera, and fiction. ""St. Louis"" was a diesel-powered ship (as opposed to a diesel-fired steamer) and properly referred to with the prefix MS or MV, built by the Bremer Vulkan shipyards in Bremen for ""HAPAG"", better known in English as the Hamburg America Line. She is often known as SS ""St. Louis"". The ship was named after the city of St. Louis, Missouri. (Her sister ship, , was also a diesel motor ship/motor vessel owned"
"all seagoing steamboats were equipped with mast and sails to supplement the steam engine power and provide power for occasions when the steam engine needed repair or maintenance. These steamships typically concentrated on high value cargo, mail and passengers and only had moderate cargo capabilities because of their required loads of coal. The typical paddle wheel steamship was powered by a coal burning engine that required firemen to shovel the coal to the burners. By 1849 the screw propeller had been invented and was slowly being introduced as iron increasingly was used in ship construction and the stress introduced by"
"PS Enterprise PS ""Enterprise"" is an 1878 Australian paddle steamer, currently owned by the National Museum of Australia in Canberra. It is still operational, and one of the oldest working paddle steamers in the world. It is listed on the Australian Register of Historic Vehicles. ""Enterprise"" is built from river red gum wood; the engine is a two-cylinder single expansion steam engine made by the Beverley Iron and Wagon Company in Humberside, England in 1877. The original boiler was replaced in 1988. It is long, wide, and high (from waterline). It has a shallow draft of , allowing it to"
"gas generators for the turbines, a rare arrangement never before used on a ship. Of the eight original coal-fired boilers only two were retained, and these were modified to oil firing. After World War II ""Clas Fleming"" was placed in reserve in Stockholm, and was decommissioned on 1 January 1959. HSwMS Clas Fleming HSwMS ""Clas Fleming"" was a mine cruiser of the Swedish Navy from World War I until the Cold War. She was named after the 17th century Swedish admiral Clas Fleming. Commissioned in 1914, ""Clas Fleming"" was among the first Swedish warships to use Parsons steam turbines. As"
"can have a much lower precision. For this reason, the PRS’s are weighted. Based on variance a PRS receives a weight between 0 and 1. To maintain position azimuth thrusters (electric, L-drive or Z-drive) bow thrusters, stern thrusters, water jets, rudders and propellers are used. DP ships are usually at least partially diesel-electric, as this allows a more flexible set-up and is better able to handle the large changes in power demand, typical for DP operations. These fluctuations may be suitable for hybrid operation. An LNG-powered platform supply vessel started operation in 2016 with a 653 kWh/1600 kW battery acting"
"Steam yacht A steam yacht is a class of luxury or commercial yacht with primary or secondary steam propulsion in addition to the sails usually carried by yachts. The English steamboat entrepreneur George Dodd (1783–1827) used the term ""steam yacht"" on 16 May 1817 albeit in describing PS ""Thames"", ex ""Duke of Argyle"". She was one of the five passenger steamboats then under Dodd's direction, and his description was used in an effort to advertise how luxurious these vessels were-for the general public. Her service on the river had first been reported in a newspaper. At that time, she had"
"160 rpm synchronous freshwater-cooled ABB Azipod propulsors. The first vessel with the ""Zuider"" prefix launched in 1912 as the 5,211 ton cargo ship ""Zuiderdijk""; at the time, ""dijk"" or ""dyk"" was the suffix used for cargo vessels, ""dam"" was used for passenger ships. She sailed between Rotterdam and Savannah, Georgia, for Holland America through 1922 as well as during World War I as a transport. The second NASM ship to have the name prefix ""Zuider"", and the first to be wholly ""Zuiderdam"", was launched from a shipyard in Rotterdam for outfitting in 1941. However, on 28 August 1941 she was"
"SR Merchant Navy class The SR Merchant Navy class (originally known as the 21C1 class, and later informally known as Bulleid Pacifics, Spam Cans or Packets) is a class of air-smoothed 4-6-2 Pacific steam locomotives designed for the Southern Railway by Oliver Bulleid. The Pacific design was chosen in preference to several others proposed by Bulleid. The first members of the class were constructed during the Second World War, and the last of the 30 locomotives in 1949. Incorporating a number of new developments in British steam locomotive technology, the design of the Merchant Navy class was among the first"