NER 1001 Class
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NER 1001 Class

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The "long boiler" design dated back to a Stephenson design of 1842. At that time there was a controversy about keeping the centre of gravity low. Another point of view was espoused by John Gray who set out to improve efficiency and increase the pressure in shorter boilers using single drivers instead of coupled wheels. His ideas led to the design of the highly successful Jenny Lind locomotive. The long boiler design with coupled wheels continued for slower heavier wor...