Steam locomotives of British Railways

ex-Great Western Railway No. 6833 Calcot Grange, a 4-6-0 Grange class steam locomotive, at Bristol Temple Meads station

Preserved War Department steam locomotive

The steam locomotives of British Railways were used by British Railways over the period 1948-1968. The majority of these were inherited from the Big Four British railway companies. In the 1950s, new British Railways Standard steam locomotives were introduced.

Numbering

BR locomotives were numbered in the following series:

• 1 series, former Great Western Railway steam locomotives
• 10,000 series, diesel locomotives and electric locomotives
• 30,000 series, former Southern Railway steam locomotives
• 40,000 and 50,000 series, former London, Midland and Scottish Railway steam locomotives
• 60,000 series, former London and North Eastern Railway steam locomotives
• 70,000 series, British Railways Standard steam locomotives
• 90,000 series, former War Department steam locomotives (originally in 70,000 series)
• 92,000 series, BR Standard Class 9F