LNER class D41

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LNER D41 class
ex-GNSR S and T classes
Elgin with ex-GNofS 4-4-0 geograph-2851825-by-Ben-Brooksbank.jpg
No. 2251 at Elgin station 26 August 1948
Specifications
Power type steam
Designer Class S James Johnson; Class T William Pickersgill
Builder Neilson and Company
Build date 1893–1898
Total produced 6 Class S, 26 Class T
Configuration 4-4-0
UIC classification 2'Bn (13) and 2'Bh (8)
Gauge 4 ft 8 12 in (1,435 mm)
Leading wheel
diameter
3 ft 9.5 in (1.156 m)
Driver diameter 6 ft 1 in (1.854 m)
Locomotive weight Class S: 43 long tons (43.690017078399 t); Class T: 45 long tons (45.7 t)
Boiler pressure 165 psi (1.14 MPa)
Cylinders Two, inside
Cylinder size 18 × 26 in (452×660 mm)
Valve gear Stephenson, slide valves
Tractive effort 16,184 lbf (71.99 kN)
Career
Operator(s) Great North of Scotland Railway
London and North Eastern Railway
British Railways
Class GNSR: F & T
LNER: D41
BR:
Power class BR: 2P
Retired 1946–1953
Disposition All scrapped

The London and North Eastern Railway (LNER) D41 class is a type of 4-4-0 steam locomotive inherited from the Great North of Scotland Railway (GNSR). The class consisted of two similar GNSR classes: 'S' (introduced in 1893 and designed by James Johnson and 'T' (introduced in 1895 and designed by William Pickersgill. The two classes were similar but with detail differences to the boiler.[1]

Construction history[edit]

Class S[edit]

In December 1893 six locomotives were supplied by Neilson (works nos. 4640-4646) and were numbered 78-83.[2]

Class T[edit]

Between December 1895 and February 1898 a further twenty six locomotives were supplied by Neilson works nos. 4877-90 and 5212-23, fitted with a larger boiler. Nine of these had been reboilered between 1916 and 1923, making them indistinguishable from the 'S' class, and the remainder were similarly reboilered by the London and North Eastern Railway (LNER) after 1923. The LNER therefore treated them all as a single class, 'D41'.

The first locomotive was withdrawn in 1947.

British Railways[edit]

Eighteen of the 21 locomotives passed into British Railways ownership in 1948 (eleven former class V, and seven former class F). BR renumbered them by adding 60000 to their 1946 LNER number.

The last locomotives were withdrawn in 1946, and survivors lasted until 1953.


References[edit]

  1. ^ Baxter, Bertram; David Baxter and Peter Mitchell (2012). British Locomotive Catalogue 1825-1923 6. Southampton: Kestrel Railway Books. pp. 239–241. ISBN 978-1-905505-26-5. 
  2. ^ Baxter (2012), p.239.


External links[edit]