# G&SWR 23 Class

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G&SWR 23 Class Type and origin Power type Steam Designer Patrick Stirling Builder Sharp, Stewart and Company Build date 1860-2 Total produced 20 Specifications Configuration: ​ • Whyte 0-4-2 Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 5 ft 0 in (1.52 m) Trailing dia. 3 ft 6 in (1.07 m) Wheelbase 7 ft 2 in (2.18 m) + 8 ft 10 in (2.69 m) Loco weight 27 long tons 2 cwt (27.5 t) Fuel type Coal Boiler pressure 120 psi (0.83 MPa) Cylinders two Cylinder size 16 in × 22 in (410 mm × 560 mm) Career Withdrawn 1882-1904 Disposition All scrapped

The [Glasgow and South Western Railway](/source/Glasgow_and_South_Western_Railway) (GSWR) **23 class** is a class of twenty [0-4-2](/source/0-4-2) steam locomotives designed in 1860. They were by [Patrick Stirling](/source/Patrick_Stirling_(railway_engineer))'s fourth 0-4-2 design for the railway.

## Development

The twenty examples of this class were designed by [Patrick Stirling](/source/Patrick_Stirling_(railway_engineer)) for the GSWR and were built by [Sharp, Stewart and Company](/source/Sharp%2C_Stewart_and_Company) (Works Nos. 1196-1205, 1264–73 and 1359–60) between July 1860 and October 1862. They were numbered 23, 35, 37, 116-122, 22, 24, and 123-30.[1] The members of the class were fitted with [domeless](/source/Steam_dome) [boilers](/source/Boiler) and [safety valves](/source/Safety_valve) over the [firebox](/source/Firebox_(steam_engine)), these were later replaced by those of [Ramsbottom](/source/John_Ramsbottom_(engineer)) design over the centre of the boiler following a boiler explosion at [Springhill](https://en.wikipedia.org/w/index.php?title=Springhill_railway_station&action=edit&redlink=1) in 1876.[2] The original weather boards were also replaced by Stirling cabs. Eight of the class were rebuilt as [0-4-2](/source/0-4-2)T locomotives between 1880 and 1886.

## Withdrawal

The unrebuilt locomotives were withdrawn by [Hugh Smellie](/source/Hugh_Smellie) between 1882 and 1888. The rebuilt locomotives were withdrawn between 1890 and 1904.

## References

1. **[^](#cite_ref-FOOTNOTEBaxter1984140–141_1-0)** [Baxter 1984](#CITEREFBaxter1984), pp. 140–141.

1. **[^](#cite_ref-FOOTNOTEBaxter1984138–140_2-0)** [Baxter 1984](#CITEREFBaxter1984), pp. 138–140.

- Baxter, Bertram (1984). Baxter, David (ed.). *British locomotive catalogue 1825-1923, volume 4: Scottish and remaining English Companies in the LMS Group*. Buxton: Moorland Publishing. [ISBN](/source/ISBN_(identifier)) [0-903485-53-2](https://en.wikipedia.org/wiki/Special:BookSources/0-903485-53-2). [OCLC](/source/OCLC_(identifier)) [59913101](https://search.worldcat.org/oclc/59913101). [OL](/source/OL_(identifier)) [25432141M](https://openlibrary.org/books/OL25432141M).

v t e Glasgow and South Western Railway locomotives Peter Robertson (1850-1853) 86 Patrick Stirling (1853-1866) 2 9 23 34 40 45 46 52 58 95 99 103 105 131 141 James Stirling (1866-1878) 6 8 13 65 75 113 157 187 208 218 221 Hugh Smellie (1878-1890) 1 22 119 153 157 218 (1881) 291 James Manson (1890-1912) 8 11 14 17 18 128 160 194 224 240 266 272 281 306 326 361 381 336 Rail motor Peter Drummond (1912-1918) 5 14 45 131 137 279 403 Robert Whitelegg (1918-1923) 1 394 540

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