Taff Vale Railway O2 class

The Taff Vale Railway O2 class was a class of 0-6-2T steam tank locomotives designed by Tom Hurry Riches and introduced to the Taff Vale Railway in 1899.

Taff Vale Railway O2 class
"Taff Vale" 0-6-0 at Oxenhope... - geograph.org.uk - 794584.jpg
Taff Vale 85 at Oxenhope, 27 January 2008
Type and origin
Power typeSteam
DesignerTom Hurry Riches
BuilderNeilson, Reid & Co.
Total produced9
 • Whyte0-6-2T
 • UICC1 n2t
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Driver dia.4 ft 6 12 in (1.384 m)
Loco weight61 long tons 10 cwt (137,800 lb or 62.5 t)
(69.4 short tons)
Boiler pressure160 psi (1.10 MPa)
CylindersTwo, inside
Cylinder size17.5 in × 26 in (444 mm × 660 mm)
Valve gearStephenson
Performance figures
Tractive effort19,870 kN (4,466,953.70 lbf)
OperatorsTVR » GWR
PreservedOne: TVR 85
DispositionOne preserved, remainder scrapped


Year Quantity Builder Serial Numbers TVR Numbers GWR numbers Notes
1899 9 Neilson, Reid & Co. 5406 (or 5409 ?), 5408, 5410–5416 82, 85, 84, 32, 83, 81, 31, 66, 44 423, 426, 425, 413, 424, 421, 412, 419, 415

Withdrawal and disposalEdit

All were withdrawn from traffic between 1926 and 1928. One locomotive, GWR 426 (TVR 85) was sold to the National Coal Board and used at their Philadelphia Colliery, numbered 52. It was subsequently saved for preservation, and is based at the Keighley and Worth Valley Railway. It was restored to original Taff Vale condition in 2000, although the paintwork didn't receive any lining out, and ran on a regular basis until 2009 when its boiler ticket expired. Due to its popularity and good condition, it received a further overhaul which was completed in February 2016, just in time for the line's Winter Steam Gala that year. This time though, the loco's paintwork received full lining out, effectively completing its original Taff Vale appearance. Since re-entering service, the loco remains part of the railway's operational fleet.

TVR 85 departing Keighley, with a vintage (L&YR) train set. 2017.


  • Casserley, H. C. & Johnston, Stuart W. (1966). Locomotives at the Grouping 4: Great Western Railway. Shepperton, Middlesex: Ian Allan Limited. p. 78.
  • Butcher, Alan C. (ed.). Railways Restored (1988/89 ed.). Weybridge, Surrey: Ian Allan Limited. pp. 85–86. ISBN 0-7110-1762-X.