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add other loco TOPS codes
BR steam had finished before the introduction of TOPS. BR Diesel locomotives were allocated numbers forming the unique ID in the form xxyyy, with xx being the class and yyy one of up to 999 members of it, for example [[50031 |50031 Hood]] would have been the 31st Class 50 locomotive while in service.
'''Heritage diesel locomotives ''' working on the main line are allocated numbers in the 89yyy series. Generally the third digit represents the power classification and the final two digits are the last two digits of the pre-TOPS number, except where duplication occurs. TOPS numbers allocated to SVR locomotives with such include:<ref>[https://www.rcts.org.uk/about/news/89xxx.htm RCTS TOPS numbers includeClass 89 listing]</ref>*89413:[[BR Class 52 D1013 Western Ranger|D1013 Western Ranger]]*89416: [[BR Class 52 D1015 Western Champion|D1015Western Champion]]: 89416*89421: [[BR Class 42 D821 Greyhound|D821Greyhound]]*89431: 89421 [[BR Class 50 50031 Hood|50031 Hood]]*89444: [[BR Class 50 50044 Exeter|50044 Exeter]] *89449: [[BR Class 50 50049 Defiance|50049 Defiance]]*89462: [[BR Class 52 D1062 Western Courier|D1062 Western Courier]] '''Heritage steam locomotives ''' working on the main line are allocated numbers in the 98yyy series. Generally the third digit represents the power classification and the final two digits are the last two digits of the BR era number, except where duplication occurs. TOPS numbers allocated to SVR locos with such still resident on the SVR include:<ref>[https://www.rcts.org.uk/about/news/98xxx.htm RCTS TOPS numbers includeclass 98 listing]</ref>*98243: [[46443]]*98406: [[43106]]*98425: [[7325]]*98469: [[75069]]*98479: [[80079]]*98502:[[7802|7802 Bradley Manor]]*98510: [[45110]]*98512: [[7812|7812 Erlestoke Manor]]*98519: [[7819|7819 Hinton Manor]]*98530: 98510[[4930|4930 Hagley Hall]]*98568: [[42968]]*98727: [[4877334027|34027 Taw Valley]]*98857: [[2857]]*98873: [[48773]]
For heritage locomotives, the TOPS number was used for reporting purposes and was commonly displayed inside the cab.
*Wikipedia: [https://en.wikipedia.org/wiki/British_Rail_locomotive_and_multiple_unit_numbering_and_classification#1973_numbering_and_classification_-_TOPS British Rail locomotive and multiple unit numbering and classification]
*Wikipedia: [https://en.wikipedia.org/wiki/British_carriage_and_wagon_numbering_and_classification British carriage and wagon numbering and classification]
*RCTS: [https://www.rcts.org.uk/about/news/89xxx.htm Class 89 TOPS listing]
*RCTS: [https://www.rcts.org.uk/about/news/98xxx.htm Class 98 TOPS listing]
