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The British Rail Class 203, initially classified 6B, was a type of diesel-electric train. Seven units, numbered 1031-1037, were constructed in 1958 for use on the Southern Region. They were similar to the earlier Class 202 units, differing only in the substitution of a trailer buffet car for one of the three trailer second opens. ==Operations== The units were delivered in 1958 in then-standard British Railways green livery. They worked initially on the Hastings–Tonbridge–London /Cannon Street line.〔 In 1963, the number of buffet cars was reduced to five to reflect falling demand, with units 1031 and 1032 losing the carriages; 1031 was converted to standard 6L (202) formation while 1032 lost another car to replace a damaged car in another unit and ran with two TFKs, downgraded to TSK, from Class 201; the rest of these units were used in the formation of 3R(206) "Tadpole" units 1201-1206. The TSKs were later transferred to a 6S(201) unit and replaced with two standard 6L(202) TSOs and 1032 became another standard Class 202 unit. The two buffet cars removed from the units were stored and later converted for departmental use. Between 1972 and 1977 two units worked a ––– service and return on Saturdays only.〔Welch p.92〕 Class 203s were also used occasionally in place of Class 205 or Class 207 units on the Oxted Line〔Welch p.58〕 and Class 206 units between and .〔Welch p.46〕 At least one Class 203 unit was repainted in all-over Rail Blue with the carriage numbers repositioned higher, before all five remaining buffet units became blue and grey. Yellow squares and later yellow ends were added during repainting. In the 1980s the remaining five buffet cars were withdrawn and scrapped. The remaining five Class 203s became five-car units, with one shortened to four cars to run the – shuttle when the Tunbridge Wells- service was withdrawn as part of the Tonbridge–Bopeep Junction electrification scheme.〔 Upon the completion of this scheme almost all Class 201, 202 and 203 units were withdrawn, although a motor brake second open and trailer composite corridor (TCK) were used briefly to reinstate Class 206 unit 1206. Class 202 "6L" Unit 1011, however, continued in service as a 4-car unit. For unclear reasons it was renumbered into the Class 203 sequence when the TOPS system was introduced, becoming 203001. It was used on the Marshlink Line until 1990, when it was converted for departmental use and renumbered 1067. It was again renumbered, to 1067, and repainted into Network SouthEast livery. It was withdrawn in 1994.〔Welch p.47〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「British Rail Class 203」の詳細全文を読む スポンサード リンク
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