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LMS Turbomotive
The Turbomotive was a modified Princess Royal Class steam locomotive designed by William Stanier and built by the London, Midland and Scottish Railway in 1935. It used turbines instead of cylinders. It was later rebuilt as a conventional locomotive 46202 ''Princess Anne''.
The forward turbine had 18 rows of blading. Output was at 7060 rpm, corresponding to running at . Boiler pressure was . The turbine was designed to operate into a maximum back-pressure of , allowing a conventional double blast-pipe to provide the boiler draught, and eliminating draught fans, which always seemed to give a disproportionate amount of trouble.
The reverse turbine had 4 rows of blades. It was engaged by a dog clutch, activated when the reverser lever was set to "0". This was originally steam-operated by a small piston and cylinder.
== 46202 Princess Anne ==
46202 was rebuilt as a conventional locomotive in 1952, using new mainframes and a spare set of cylinders from a "Coronation" class locomotive, and named ''Princess Anne''. On 8 October 1952, after only two months in service, it was the train engine of the double-headed Liverpool and Manchester express involved in the Harrow and Wealdstone railway accident. The locomotive was taken to Crewe, where it was deemed beyond economical repair and scrapped. The destruction of No. 46202 led to the construction of BR Standard Class 8 number 71000, ''Duke of Gloucester''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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