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Class 12
Class 12 may refer to: Railroading * British Rail Class 12, a British diesel locomotive class * DRG Class 12, a German steam locomotive class comprising the following eight-coupled, express locomotives operated by the Deutsche Reichsbahn: ** Class 12.0: BBÖ 214 ** Class 12.1: BBÖ 114 * EAR 12 class, steam locomotive * Indian locomotive class WAG-12, electric locomotive * JNR Class C12, steam locomotive * LSWR A12 class, steam locomotive * LSWR L12 class, steam locomotive * MGWR Class 12, steam locomotive * New South Wales Z12 class locomotive, steam locomotive * NSB Class 12, steam locomotive * PKP Class Ol12 * Queensland A12 class locomotive, steam locomotive * Prussian G 12 * SNCB Type 12, a Belgian steam locomotive * SNCB Class 12, a Belgian electric locomotive * Southern Pacific class AC-12, steam locomotive * VR Class Dm12, railcar * VR Class Dr12, diesel locomotive * VR Class Dv12, diesel locomotive Other * ARD-12-class floating dry dock * O 12-class submarine * Twelfth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 12
The British Rail Class 12 is a diesel locomotive built primarily for shunting duties around London. History This was the second batch of Southern Railway shunters based on the English Electric 6KT 350 hp (260 kW) diesel engine. The first experimental batch (BR numbers 15201–15203) were designed by Richard Maunsell of the SR in 1937 and were later classified D3/12. These locomotives were Oliver Bulleid's development of Maunsell's original design, but were significantly lighter. They featured Bulleid's distinctive BFB wheels, and incorporated a number of details from the diesel-electric shunters produced by the London, Midland and Scottish Railway 1936–39. They were built at the BR Ashford Works over the period 1949–1952 and numbered 15211–15236. They later became Class 12, but no locomotives survived long enough to acquire Class 12 TOPS numbers. Technical details The diesel engine is an English Electric 6-cylinder, 4-stroke, 6KT and the traction motors are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prussian G 12
The Prussian G 12 is a 1'E 2-10-0 goods train locomotive built for the Prussian state railways (''Preußische Staatseisenbahnen''). It had been shown during the First World War that, from a servicing and maintenance point of view, it was a great disadvantage for each state railway to have its own locomotive classes with no standardization. Even spare parts for locos of the same class often did not fit their sister locos. In addition, the military railways needed a fast, powerful, goods locomotive that did not have a high axle load. ''Einheitslokomotive'' G 12 In the advertisements placed by locomotive factories, G 12 engines were described as ''Einheitslokomotiven'' (standard locomotives). That caused a lot of confusion, because the term ''Einheitslokomotive'' had become synonymous with the ''Einheitslokomotive 1925'', designed in that year by the DRG ( „Kunibald“ Wagner). The Deutsche Bundesbahn (DB) also called its steam locomotives ''Einheitslokomotive 1950'' accordin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twelfth Grade
Twelfth Grade (also known as Grade 12, Senior Year, Standard 12, 12th Standard, 12th Class, or Class 12th or Class 12) is the twelfth and final Educational stage, year of Formal education, formal or compulsory education. It is typically the final year of secondary school and K–12 in most parts of the world. Students in twelfth grade are usually 17-18 years old. Some countries have a thirteenth grade, while other countries do not have a 12th grade/year at all. Australia In Australia, the twelfth grade is referred to as Year 12. In New South Wales, students are usually 16 or 17 years old when they enter Year 12 and 17 or 18 years during graduation (end of year). A majority of students in Year 12 work toward getting an Australian Tertiary Admission Rank, ATAR (Australian Tertiary Admission Rank). Up until the start of 2020 the Overall Position, OP (Overall Position, which applies only to students in the state of Queensland) was used. Both of these allow/allowed them access to cours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O 12-class Submarine
The ''O 12''-class submarine consisted of four submarines built for the Royal Netherlands Navy. The ships, with a diving depth of , were used for patrols in the Dutch home waters. The class comprised ''O 12'', ''O 13'', ''O 14'' and ''O 15''. ''O 12'' entered German service in 1943 as ''UD-2''. Construction The ships were built by two shipyards. ''O 12'', ''O 13'' and ''O 14'' were built by Koninklijke Maatschappij De Schelde Damen Naval is a Dutch shipyard, and a continuation of the Koninklijke Maatschappij De Schelde, responsible for a number of ships used by the Royal Netherlands Navy. It is owned by the Damen Group. Damen Naval is situated in Vlissingen. History ... in Vlissingen and ''O 15'' in Rotterdam at Fijenoord shipyard. References Bibliography * External linksDescription of class {{WWII Dutch ships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARD-12-class Floating Dry Dock
An auxiliary floating drydock is a type of US Navy auxiliary floating dry dock. Floating dry docks are able to submerge underwater and to be placed under a ship in need of repair below the water line. Water is then pumped out of the floating dry dock, raising the ship out of the water. The ship becomes blocked on the deck of the floating dry dock for repair. Most floating dry docks have no engine and are towed by tugboats to their destinations. Floating dry docks come in different sizes to accommodate varying ship sizes, while large floating dry docks come in sections and can be combined to increase their size and lift power. Ballast pontoon tanks are flooded with water to submerge or pumped dry to raise the ship. World War II At the start of World War II, the US Navy had only three steel auxiliary floating dry docks: To reduce travel time for repair work, over 150 auxiliary floating dry docks of different sizes were built during World War II between 1942 and 1945. These ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VR Class Dv12
The Dv12 (Sv12 and Sr12 until 1977) is the standard Finnish medium-weight diesel-hydraulic road switcher operated by VR. As all the main lines of Finnish railway network have been electrificied, the locomotive is designated mostly to unelectrified, less frequently used side lines. Occasionally it may still pull cargo trains on main lines. It has also been put in service as a shunter, replacing older classes Dv15 and Dv16 as they were retired. A total of 192 locomotives were built by Lokomo and Valmet between the years 1963 and 1984. As of 2025, the oldest Dv12 units still in use are 62 years old. Technical information The Dv12 is a general purpose locomotive which was designed for both passenger and cargo train use. Its 1000 kW power is somewhat low by current standards, but it is capable of multiple-unit operation with only one train crew and doublets and triplets are common. It has a low axle load of 15.6 tonnes, which makes it very well suited for branch lines that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VR Class Dr12
VR Class Dr12 (original designation ''Hr12'') was a heavy diesel-electric locomotive of Valtionrautatiet (Finnish State Railways). The first six locomotives were ordered in 1956. They entered service between 1959 and 1963. The locomotives were built by two manufacturers, Valmet and Lokomo, both based in Tampere. All Hr12 class locomotives with even numbers were produced by Valmet, while all odd numbers were produced by Lokomo. The locomotives were withdrawn in the early 1990s. Features When it was introduced, the Dr12 gave drivers a new experience of comfort and forward visibility compared to steam locomotives, but compared to the newer VR Class Dr13, the Dr12 had a heavy axle load and slow acceleration with a top speed of only 120 km/h. The reason for this was that the locomotive turned out to be underpowered. The problem of the top speed was corrected in the last 10 locomotives by changing the transmission in such a way that the technical top speed was increased to 140& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VR Class Dm12
The Dm12 is a diesel railcar operated by VR Group. History VR was searching a diesel motor car to be used on low traffic regional services on non-electrified tracks years after the last of the earlier diesel motor car series had been decommissioned by the end of the 1980s, and diesel locomotive pulled passenger trains had been found to be uneconomical for small-demand services. VR had earlier experimented with converting an old unpowered passenger car into a diesel motor car, but the prototype was never put to service and VR ultimately decided to acquire all-new cars. After a failed purchase, 16 Dm12 units with 20 options were finally ordered from the Czech manufacturer ČKD Vagonka, now Škoda Vagonka, in 2001, at a price of 160 million FIM. The first unit arrived to Finland earlier than expected, on 18 December 2004, after being tested in the Czech republic. VR was able to start traffic using the first unit between Joensuu and Pieksämäki on 20 May 2005. After a month and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Pacific Class AC-12
Southern Pacific Railroad's AC-12 class of simple articulated 4-8-8-2 cab forward steam locomotives was the last class of steam locomotives ordered by Southern Pacific. They were built by Baldwin Locomotive Works during World War II, with the first, number 4275, entering service on October 27, 1943, and the last, 4294, on March 19, 1944. Each locomotive was effectively a conventional 2-8-8-4 locomotive running in reverse, the tender being coupled at the smokebox end of the locomotive. This was made possible by the use of oil-firing. The distinct features of these locomotives include: a streamlined front with white band, an air horn on the front, a streamlined pilot, a SP 12 wheel box tender, and air compressors mounted on the smokebox. Southern Pacific used these locomotives all over its system, but they were extremely famous for working on Donner Pass & Cascade Summit. SP used the AC-12s for a little over a decade with the first retirements occurring on April 5, 1955, and the las ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SNCB Class 12
SNCB's Class 12 locomotives were dual-voltage (25000 V, 50 Hz AC and 3000 V DC) electric lomotives built for cross-border service into France. They were based on the single-voltage SNCB Class 21, Class 21 locomotives. They are part of the large 1980s family of 144 electric locomotives. Locomotive family The family was made up of Classes SNCB Class 11, 11 (12), 12 (12), SNCB Class 21, 21 (60) and SNCB Class 27, 27 (60). Classes 11, 12 and 21 were nearly twice as powerful as Classes SNCB Class 22, 22, SNCB Class 23, 23 and SNCB Class 25, 25. SNCB Class 27, Class 27 was more than twice as powerful as the 1950s locomotives. This family was heavily influenced by the SNCB Class 20, Class 20² from the mid-1970s. They were very reliable because of the trial and error development of their predecessor. This family came into service with M4 and M5 coaching stock and the SNCB Class AM80, AM 80 and SNCB Class AM86, AM 86 series of EMUs. This generation was a major modernization of the SN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
