4-6-0 Standard Class 5MT BR Profile and Models

The British Railways Standard Class 5MT 4-6-0 is one of the 12 standard classes of steam locomotive built by British Railways in the 1950s. It was essentially a development of the LMS Stanier Class 5 4-6-0 ("Black Five"). A total of 172 were built between 1951 and 1957. William Stanier's Black Five had been the most successful mixed-traffic type in Great Britain. Construction of the Black Fives had started in 1934 and continued past nationalisation to 1951. A new set of 'standard' locomotives was to be built by British Railways, based on LMS designs and incorporating modern ideas. In particular, the Standard design incorporated features designed to make disposal of the engine after a working "turn" easier: a self-cleaning smokebox and a rocking grate removed the necessity for crews to undertake dirty and strenuous duties at the end of a long shift. These locomotives had a trouble-free introduction in comparison to several of the other Standard classes and were used interchangeably with the pre-nationalisation class 5 engines they supplemented. They were utilised as the haulage power on duties varying from fast passenger trains to slow unfitted freight trains, displaying their versatility.

(Information provided via Wikipedia)

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