Introduced 1938. Collett rebuild with higher boiler pressure and smaller driving wheels of Churchwood's - 3150 Class (Nos 3173/56/81/55/79 respectively).

Number Series 3100-3104.

Built at Great Western Railway Swindon Works.

3100 Lot No. 319 1938
3101-3104 Lot No. 319 1939

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Unless stated otherwise, Photographs in this section are © copyright of Milburn Associates.

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[JPEG Image of 3102 size 23K]

GWR 3100 Class - 3102 at Swindon - Photo BR(WR).

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Motive Power Details - GWR 3100 Class

Data taken from the PC TOPS Steam Locomotive Database System by Milburn Associates

Class  Region  Wheels       Class Name            Designer
3100    GWR    2-6-2T                             Collett

Weight:
Loco  81 tons  9 cwt            Driving Wheel: 5' 3"
                                Boil Press: 225lb/sq in Su
Cylinders:                      Valve Gear: Stephenson (piston valves)
Two 18" x 30" (outside)         TE: 31,170 lb