Taff Vale Railway O3 class

The Taff Vale Railway O3 class was a class of two 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 type Steam Designer Tom Hurry Riches Builder Kitson & Co. Build date 1904 Total produced 2
Specifications Configuration: ​  • Whyte 0-6-2T Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Driver dia. 4 ft 6 in (1.372 m) Loco weight 63.00 long tons (64.01 t; 70.56 short tons) Fuel type Coal Boiler pressure 160 psi (1.10 MPa) Cylinders Two, inside Cylinder size 17 in × 26 in (432 mm × 660 mm) Valve gear Stephenson Valve type Slide valve
Performance figures Tractive effort 19,870 lbf (88.4 kN)
Career Operators Taff Vale Railway Great Western Railway; British Railways Withdrawn 1948 Disposition All scrapped

Numbering

Year	Quantity	Builder	Serial Numbers	TVR Numbers	GWR numbers	Notes
1904	2	Kitson & Co.	4235, 4236	18, 19	410, 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 Both were withdrawn from the Cardiff Canton shed.

See also

• Welsh 0-6-2T locomotives
• Locomotives of the Great Western Railway

External links

• Rail UK database entry for Taff Vale Railway O3 class