G&SWR 40 Class

The Glasgow and South Western Railway (GSWR) 40 class is a class of ten 2-2-2 steam locomotives designed in 1860, a development of the 2 class intended for express passenger duties.

G&SWR 40 Class
G&SWR 40.jpg
G&SWR 40 single driver locomotive
Type and origin
Power typeSteam
DesignerPatrick Stirling
BuilderKilmarnock Locomotive Works
Build date1860–1864
Total produced10
 • Whyte2-2-2
Gauge4 ft 8+12 in (1,435 mm)
Leading dia.3 ft 6 in (1.07 m)
Driver dia.6 ft 6 in (1.98 m)
Trailing dia.3 ft 6 in (1.07 m)
Loco weight24.25 LT (24.64 t)
Fuel typeCoal
Cylinderstwo, outside
Cylinder size16 in × 21 in (410 mm × 530 mm)
DispositionAll scrapped


This was the second class to be built at the new Kilmarnock Locomotive Works, in two batches. The first six locomotives numbered 40, 39, 27, 10, 43 and 42 (Works Nos. 14–19) were built between 1860 and January 1862. A further four locomotives, numbered 28–9, 31 and 44 were built in 1864 (Works Nos. 26–29).[1] The members of the class were fitted with domeless boilers. They were originally built without cabs, but several later had them fitted. Two members of the class were fitted with Giffard injectors.


The class were withdrawn by James Stirling and Hugh Smellie between 1876 and 1881.


  1. ^ Baxter, Bertram (1984). British locomotive catalogue 1825–1923. Vol. 4. Buxton: Moorland Publishing. p. 138.