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Great Western Railway Bogie class
Great Britain | 1849 | 15 produced
“Corsair”
“Corsair”
Locomotive Magazine, February 1902

In 1849 the GWR manufactured the “Corsair” and “Brigand” saddle tank locomotives for passenger services on the steep and winding South Devon Railway in their own workshops in Swindon. Since the bogie could not be moved sideways, the first coupled axle was not given wheel flanges. The “Corsair” still had a sledge brake, the “Brigand” received a shoe brake on one wheel.

“Ovid”
“Ovid”
Locomotive Magazine, June 1902

As the operation of the South Devon Railway was finally handed over from the GWR to a specially founded company, the two locomotives were used on other lines. A further 13 locomotives were ordered, but the production of these was handed over to Hawthorns'. In these, the diameter of the driving wheels had been reduced by three inches.

VariantCorsair, BrigandHawthorn
General
Built18491854-1855
ManufacturerSwindonR. & W. Hawthorn & Co.
Axle config4-4-0ST (American) 
Gauge7 ft 0 1/4 in (GWR broad gauge)
Dimensions and Weights
Wheelbase18 ft 2 in18 ft
Fixed wheelbase7 ft 8 in7 ft 6 in
Service weight80,080 lbs86,128 lbs
Adhesive weight47,600 lbs53,760 lbs
Axle load23,800 lbs28,000 lbs
Water capacity1,117 us gal
Fuel capacitycoal
Power
Power sourcesteam
Estimated power275 hp (205 kW)270 hp (201 kW)
Optimal speed19 mph18 mph
Starting effort9,417 lbf9,826 lbf
Power Plant
Driver diameter72 in69 in
Boiler pressure115 psi
Expansion typesimple
Cylinderstwo, 17 x 24 in
Boiler
Grate area19 sq ft
Calculated Values
steam locomotive
tank locomotive
passenger
Daniel Gooch
last changed: 03/2023
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