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Steam Locomotives of the London, Chatham & Dover Railway (LC&DR)[Inhalt]
London, Chatham & Dover classes M, M1 and M2
Great Britain | 1877 | 18 produced
M No. 158
M No. 158
Locomotive Magazine, August 1923

For the heaviest of the boat trains between London and Dover, William Kirtley designed the class M, of which six were built by Neilson & Co. in 1877. Two further orders had to be placed in part with the company's own workshops in Longhedge. Four class M1 locomotives and eight class M2 locomotives followed, which were almost identical to the first. All locomotives received new boilers between 1898 and 1904. They were retired between 1911 and 1923.

VariantMM1M2
General
Built18771880-18811884-1885
ManufacturerNeilson & Co.LonghedgeDübs & Co., Longhedge
Axle config4-4-0 (American) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase21 ft 0 1/2 in
Fixed wheelbase8 ft 4 in
Service weight98,112 lbs
Adhesive weight62,720 lbs
Total weight169,680 lbs165,760 lbs162,400 lbs
Axle load31,360 lbs
Water capacity3,062 us gal
Fuel capacity8,960 lbs (coal)coal
Power
Power sourcesteamDamof
Estimated power400 hp (298 kW)
Optimal speed21 mph
Starting effort12,148 lbf
Power Plant
Driver diameter78 in
Boiler pressure140 psi
Expansion typesimple
Cylinderstwo, 17 1/2 x 26 in
Boiler
Grate area16.3 sq ft
Firebox area107 sq ft
Tube heating area962 sq ft
Evaporative heating area1,069 sq ft
Total heating area1,069 sq ft
Calculated Values
steam locomotive
express
William Kirtley
last changed: 03/2023
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