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North Eastern classes M1 and Q
London & North Eastern classes D17/1 and D17/2
Great Britain | 1892 | 50 produced
Locomotive Engineering, October 1895

Worsdell had 20 class M1 locomotives built from 1892, which, unlike previous express locomotives, did not have a compound engine. From 1896, 30 more of the class Q followed, which had a smaller boiler and slightly larger cylinders. With their more than seven-foot wheels, they were used in front of the fastest trains. At the LNER they became classes D17/1 and D17/2. Most were retired by 1945. Only two D17/2s came to British Railways and were retired in February 1948.

VariantM1Q
General
Built1892-18941896-1897
ManufacturerGateshead
Axle config4-4-0 (American) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight113,568 lbs
Adhesive weight75,488 lbs
Axle load37,744 lbs
Water capacity4,954 us gal
Fuel capacity11,760 lbs (coal)
Power
Power sourcesteam
Starting effort14,974 lbf17,744 lbf
Power Plant
Driver diameter85.3 in
Boiler pressure160 psi180 psi
Expansion typesimple
Cylinderstwo, 19 x 26 intwo, 19 1/2 x 26 in
Boiler
Grate area19.6 sq ft19.8 sq ft
Firebox area121 sq ft123 sq ft
Tube heating area1,220 sq ft1,089 sq ft
Evaporative heating area1,341 sq ft1,212 sq ft
Total heating area1,341 sq ft1,212 sq ft
Calculated Values
steam locomotive
express
Wilson Worsdell
last changed: 03/2023
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