LNWR 17in Coal Engine
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The LNWR 17in Coal Engine was a class of 0-6-0 steam tender engines designed by Francis Webb for the London and North Western Railway. They were simple locomotives and in UK service they were very reliable.[1] "17in" refers to their cylinder diameter in inches. They were called "Coal Engines" because they were used for hauling coal trains.
Design and construction
The 17in Coal Engine was the first new design of engine to be built by Webb since he became Chief Engineer of the LNWR in September 1871. A policy of 'low costs' was in force at the LNWR, with running costs per engine mile reduced from <templatestyles src="Fraction/styles.css" />10+3⁄4d per engine mile in 1857 to <templatestyles src="Fraction/styles.css" />7+3⁄4d by 1871.Template:Sfnp The first 17in Coal Engine was constructed in 1873, the first of almost five hundred built. Ernest L. Ahrons is quoted as regarding the type as "probably the simplest and cheapest locomotives ever made in this country",Template:Sfnp and O. S. Nock described them as "splendid".Template:Sfnp
Many aspects of the 17in Coal's design reflected John Ramsbottom's final design: the 0-6-0 Special Tank, including the identical wheel diameter and cylinder dimensions, but the new engines had a larger, improved boiler.Template:Sfnp In February 1878, one engine of this design was built from scratch in <templatestyles src="Fraction/styles.css" />25+1⁄2 hours.
Operation
During the First World War the Railway Operating Division of the Royal Engineers took many Coal Engines for use overseas, including many to the British Expeditionary Force in France and 42 to the Palestine Military Railway.Template:Sfnp Those in Palestine were reported to have performed badly and Palestine Railways sold them all for scrap by 1922.Template:Sfnp This may have been due partly to the poor quality of water used in Palestine.Template:Sfnp
227 Coal Engines passed into LMS stock after the 1923 grouping.Template:Sfnp 35 survived until the nationalisation of Britain's Railways in 1948 and entered British Railways stock. BR numbers were 58321-58361 (with gaps).
Rebuilds
Between 1905 and 1907, 45 Coal Engines were rebuilt as tank locomotives with a single square saddle tank perched on the boiler and a small coal bunker behind the cab.
References
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Bibliography
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