Taff Vale Railway O3 class

The Taff Vale Railway O3 class was a class of 2 0-6-2T steam tank locomotives designed by Tom Hurry Riches, built by Kitson & Co. and introduced to the Taff Vale Railway in 1904. They were rebuilt with new boilers by the Great Western Railway (GWR) in 1930.

Taff Vale Railway O3 class
Type and origin
Power typeSteam
DesignerTom Hurry Riches
BuilderKitson & Co.
Build date1904
Total produced2
Specifications
Configuration:
​
 • Whyte0-6-2T
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia.4 ft 6 in (1.372 m)
Loco weight63.00 long tons (64.01 t; 70.56 short tons)
Fuel typeCoal
Boiler pressure160 psi (1.10 MPa)
CylindersTwo, inside
Cylinder size17 in × 26 in (432 mm × 660 mm)
Valve gearStephenson
Valve typeSlide valve
Performance figures
Tractive effort19,870 lbf (88.4 kN)
Career
OperatorsTaff Vale Railway
Great Western Railway;
British Railways
Withdrawn1948
DispositionAll scrapped

Numbering
YearQuantityBuilderSerial NumbersTVR NumbersGWR numbersNotes
19042Kitson & Co.4235, 423618, 19410, 411

Withdrawal and disposal

Both entered British Railways service in 1948, but neither lasted more than 3 months before being retired and scrapped. Both were withdrawn from the Cardiff Canton shed.

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See also
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