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The GWR was the longest-lived of the pre-nationalisation railway companies in Britain, surviving the 'Grouping' of the railways in 1923 almost unchanged. As a result, the history of its numbering and classification of locomotives is relatively complicated. This page explains the principal systems that were used.
From late 1970, British Rail started to apply new numbers to locomotives and multiple units based on the TOPS classification system, the first classes to be dealt with being the LNER-design EM1 type (TOPS class 76) and the AL3 and AL4 types of AC electric locomotives (TOPS classes 83 and 84).
During the remainder of the 1930s, numbers were cleared for new locomotives by simply adding 20000 to the numbers of old locomotives. Diesel shunters, which started to appear from the early 1930s onwards, were numbered in the same series as steam locomotives.
The exception to this rule was that any broad gauge locomotives the GWR absorbed from other railways (in particular, the South Devon Railway and Bristol and Exeter Railway) were given numbers in the 2000-2199 series.
Electric locomotives. The numbering system was divided into two series, one for AC locomotives and one for DC locomotives. DC locomotives were numbered from E5000 upwards, and DC electro-diesel locomotives, with a diesel generator for working off electrified lines, were numbered from E6000 upwards.
- 400-599
- Class Allocation
- 200-299
When British railways were nationalized in 1948, locomotives were numbered in the following series: 1 - 9999: Steam locomotives inherited from the Great Western Railway company (GWR) 10000 - 19999: Internal Combustion (diesel, petrol and gas turbine) locomotives
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Feb 6, 2021 · The GWR was the longest-lived of the pre-nationalisation railway companies in Britain, surviving the 'Grouping' of the railways in 1923 almost unchanged. As a result, the history of its numbering and classification of locomotives is relatively complicated. This page explains the principal systems th
