2-4-2T Class 4' 6" 'Chopper' LNWR Profile and Models

The LNWR 4ft 6in Tank was a class of 220 passenger 2-4-2T locomotives manufactured by the London and North Western Railway in their Crewe Works between 1879 and 1898. The "4ft 6in" in the title referred to the diameter of the driving wheels. The design was an extension of the earlier 2234 2-4-0T built from 1876 which became known as "Chopper Tanks". They had been designed for working local passenger trains. From 1909 many locomotives of the class were fitted for Push-pull working, giving the nickname of "Motor Tanks". 6 of the Class were sold to the Dublin, Wicklow & Wexford Railway, which were converted to 2-4-0T and re-gauged to 5ft 3in. 5 others were sold to the Wirral Railway and Cardiff Railway respectively. Withdrawals started in 1905: 118 were scrapped in the years up to 1923 grouping, leaving 90 to be passed to the London, Midland and Scottish Railway. They were allocated power class 1P, and assigned the numbers 6515–6600 and 6758–6761; although only 37 survived long enough to receive them: withdrawals restarted in 1924, and when the last was withdrawn in June 1936, the class became extinct. None were preserved.

(Information provided via Wikipedia)

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