Steam Loco Class Information

Class Details

Introduced 1890. Hosgood Barry Railway Class B1 design.
(a) Rebuilt from 1924 with GWR boiler.

Weight:
Loco 55 tons 13 cwt Driving Wheel: 4' 3"
53 tons 9 cwt (a) Boil Press: 160lb/sq in NS
150lb/sq in NS (a)
Cylinders: Valve Gear: Stephenson (slide valves)
Two 17?" x 26" (inside) TE: 20,825 lb; 19,525 lb (a)

Total Locos for Class - 20

238
240 a

246
248 a

258
259

261 a
262 a

263 a
265 a

267 a
268 a

269 a
270 a

271 a
272 a

274 a
275 a

276 a
277 a