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NSB Class 86
NSB Class 86 ((ノルウェー語:NSB type 86)) is a class of diesel-hydraulic multiple units built by Strømmens Værksted for the Norwegian State Railways (NSB). Thirty-eight motor cars and thirty-one trailers were built between 1937 and 1954, split between six subtypes designated a through f. Class 91 was a further delivery of ten units that had a more comfortable interior and designed for regional trains. The trains had good accelearation and a maximum speed of , which made them suitable for most unelectrified lines in Norway. As most of the network gradually became electrified, the class became increasingly used on branch lines.
The oldest units were originally equipped with MAN and DWK prime movers. Later models received prime moves from Hercules. From the 1960s, all trains not retired received two Rolls-Royce C6SFLH engines with a power output of each. The class was taken out of regular service in 1994 and retired in 1996. Thirteen motor units and nine trailers have been preserved by various heritage railways and museums in Norway and Denmark.
==Specifications==
The oldest units were equipped with Maschinenfabrik Augsburg-Nürnberg (MAN) and DWK prime movers. The DWK engines in the a and c-series had a power output of each. The MAN engine in the b-series had a power output of each, while the d-series with DWK engines had a power output of each. Later editions were originally equipped with two Hercules DFXH-F prime movers, each with a power output of . The class was later retrofitted with two Rolls-Royce C6SFLH with a power output of . The class had a diesel-hydraulic transmission, with fluid converters originally from Atlas. They had a weight of and a maximum speed of .
Standard seating in a Class 86 unit is for 70 people in five-abreast seating plus six people in folding seats. As the class was gradually renovated and rebuilt, a new lettering scheme was introduced, where the letter indicated the unit's seating configuration. 86F had reversible backs, 86G had adjustable seating, while 86 K, L and M had fixed seats with high backs. The G-series had only 49 regular plus six folding seats. In the 1980s, the trains remaining in service were renovated and became the M-series. These had 60 regular and six folding seats with fixed backs. Class 91 had only four-abreast seating with a capacity for 64 regular and 6 folding seats, and was made for longer journeys.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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