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Great North of Scotland No. 28 to 36
London & North Eastern class D47/2
Great Britain | 1861 | 9 produced
Locomotive Magazine, October 1903

William Cowan joined the Great North of Scotland in 1857 as Chief Engineer and soon had to order new locomotives due to growth in traffic. The three engines delivered by Robert Stephenson & Co. in 1861 were among the first in Britain to have a 4-4-0 wheel arrangement. Six more followed two years later. A short time later a similar type was built with the same cylinder diameter of 16 inches and a stroke of 24 instead of 22 inches.

A slightly larger axle spacing on the bogie made it possible to arrange the cylinders horizontally. In the beginning, the smoke fireboxes of the locomotives contained a smoke consuming device of the type designed by D.K. Clark, who blew fresh air directly over the fire. In addition to the removal of the smoke consumers, further conversions were carried out, which ensured a long service life. They remained in service until after 1923 and became class D47/2 of the LNER.

General
Built1861, 1863
ManufacturerRobert Stephenson & Co.
Axle config4-4-0 (American) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight77,280 lbs
Adhesive weight34,720 lbs
Axle load17,360 lbs
Fuel capacitycoal
Power
Power sourcesteam
Estimated power200 hp (149 kW)
Optimal speed12 mph
Starting effort10,987 lbf
Power Plant
Driver diameter61 in
Boiler pressure140 psi
Expansion typesimple
Cylinderstwo, 16 x 22 in
Boiler
Grate area10.3 sq ft
Firebox area67.4 sq ft
Tube heating area898 sq ft
Evaporative heating area965.4 sq ft
Total heating area965.4 sq ft
Calculated Values
steam locomotive
passenger
freight
William Cowan
last changed: 10/2022
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