NER Class M1

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The North Eastern Railway Class M1 (LNER Class D17/1) is a class of 4-4-0 steam locomotive, designed by Wilson Worsdell. 20 initial engines were built, then 30 further units were built, designated Class Q (LNER Class D17/2).

Classification

Classification was complex. The NER initially classified these locomotives "M1", while a variant (with compound expansion) was classified "M". The compound was later re-classified "3CC" and the "M1" was re-classified "M".

Under LNER ownership the "M" (formerly "M1") became LNER Class D17/1 and the "3CC" (formerly "M") became LNER Class D19.

This table summarises LNER classes D17, D18 and D19, which were all very similar:

• HP = high-pressure cylinder, LP = low-pressure cylinders

Accidents and incidents

• On 4 October 1894, locomotive No. 1622 was one of two locomotives hauling a sleeping car train which overran signals and collided with a freight train that was being shunted at Castle Hills, Yorkshire. One person was killed.^[1]

Main article: Hull Paragon rail accident

• On 14 February 1927, locomotive No. 1628 was hauling a passenger train that was in a head-on collision with another at
  Hull Paragon station, Yorkshire due to a signalman's error. Twelve people were killed and 24 were injured.^[2]

• D17/1 number 1621 is preserved at the National Railway Museum. It is at the National Railway Museum in Shildon.^{[citation needed]}

References