This article includes a
list of references,
related reading, or
external links, but its sources remain unclear because it lacks
inline citations. (June 2014) |
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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 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:
Original NER class | New NER class | LNER Class | Cylinders | Driving wheels |
---|---|---|---|---|
M1 | M | D17/1 | (2) 19″ × 26″ | 7′ 1¼″ |
Q | - | D17/2 | (2) 19½″ × 26″ | 7′ 1¼″ |
Q1 | - | D18 | (2) 19½″ × 26″ | 7′ 7¼″ |
M | 3CC | D19 | HP (1) 19″ × 26″ LP (2) 20″ × 24″ |
7′ 1¼″ |
The last two D17/1s were withdrawn in 1945. Number 1629 was scrapped but number 1621 was saved for preservation.
No D17/1s passed into British Railways ownership. Two D17/2s did (BR numbers 62111 and 62112) but they were withdrawn in February 1948.
This article includes a
list of references,
related reading, or
external links, but its sources remain unclear because it lacks
inline citations. (June 2014) |
NER Class M1/M, Q and Q1 LNER Class D17/1, D17/2 and D18 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 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:
Original NER class | New NER class | LNER Class | Cylinders | Driving wheels |
---|---|---|---|---|
M1 | M | D17/1 | (2) 19″ × 26″ | 7′ 1¼″ |
Q | - | D17/2 | (2) 19½″ × 26″ | 7′ 1¼″ |
Q1 | - | D18 | (2) 19½″ × 26″ | 7′ 7¼″ |
M | 3CC | D19 | HP (1) 19″ × 26″ LP (2) 20″ × 24″ |
7′ 1¼″ |
The last two D17/1s were withdrawn in 1945. Number 1629 was scrapped but number 1621 was saved for preservation.
No D17/1s passed into British Railways ownership. Two D17/2s did (BR numbers 62111 and 62112) but they were withdrawn in February 1948.