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Steam Locomotives of the South Eastern Railway (SER)[Inhalt]
South Eastern class Q
South Eastern & Chatham class Q1
Great Britain | 1881 | 118 produced
ETH Zürich

For new suburban lines in London, James Sterling developed a tank locomotive with a 0-4-4T wheel arrangement, which was based on the G&SWR Class 1, which he had developed earlier. The 34 locomotives that were built first still had a bogie that could not be moved sideways, while the bogie of all the others could be moved sideways. Some of the locomotives had a lower chimney and a condenser for use in tunnels. After the transition to the SE&CR, 55 locomotives were rebuilt to class Q1. The last machines were gone by 1930.

VariantQQ1
General
Built1881-18971903-1917
ManufacturerNeilson & Co., Ashford, Sharp, Stewart & Co.Ashford
Axle config0-4-4T (Forney) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase22 ft
Fixed wheelbase7 ft 5 in
Service weight108,976 lbs110,432 lbs
Adhesive weight66,416 lbs
Axle load35,840 lbs
Water capacity1,261 us gal
Fuel capacity3,360 lbs (coal)
Power
Power sourcesteam
Estimated power350 hp (261 kW)450 hp (336 kW)
Optimal speed15 mph18 mph
Starting effort15,189 lbf16,274 lbf
Power Plant
Driver diameter66 in
Boiler pressure140 psi150 psi
Expansion typesimple
Cylinderstwo, 18 x 26 in
Boiler
Grate area15.8 sq ft
Firebox area92.3 sq ft
Tube heating area829.8 sq ft
Evaporative heating area922 sq ft
Total heating area922 sq ft
Calculated Values
steam locomotive
passenger
tank locomotive
James Stirling
last changed: 05/2023
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