# G&SWR 128 Class

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Class of 2 British 4-6-0 locomotives

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G&SWR 128 Class Type and origin Power type Steam Designer James Manson Builder North British Locomotive Co. Serial number 19504–19505 Build date 1911 Total produced 2 Specifications Configuration: ​ • Whyte 4-6-0 • UIC 2′C h2 Gauge 4 ft 8+1⁄2 in (1,435 mm) Leading dia. 3 ft 8 in (1,118 mm) Driver dia. 6 ft 6 in (1,981 mm) Wheelbase 27 ft 7 in (8.41 m) Height 12 ft 11+1⁄2 in (3.950 m) Loco weight 69 long tons 2 cwt (154,800 lb or 70.2 t) Fuel type Coal Water cap. 4,100 imp gal (19,000 L; 4,900 US gal) Boiler pressure 160 psi (1,100 kPa) Heating surface 1,560 sq ft (145 m2) Superheater: ​ • Type Schmidt • Heating area 445 sq ft (41.3 m2) Cylinders Two Cylinder size 21 in × 26 in (533 mm × 660 mm) Valve gear Stephenson Performance figures Tractive effort 19,992 lbf (88.93 kN) Career Operators G&SWR » LMS Class G&SWR: 128 Power class LMS: 3P Numbers G&SWR: 128, 129; (from 1919): 512, 513; LMS: 14673, 14674 Retired 1933–1934 Disposition Both scrapped

The [Glasgow and South Western Railway](/source/Glasgow_and_South_Western_Railway) (G&SWR) **128 class** was a class of two [4-6-0](/source/4-6-0) steam locomotives designed by [James Manson](/source/James_Manson_(engineer)) as a development of his [381 Class](https://en.wikipedia.org/w/index.php?title=G%26SWR_381_Class&action=edit&redlink=1) 4-6-0s, and were his final locomotive design before he retired. They were built in 1911 by the [North British Locomotive Company](/source/North_British_Locomotive_Company) at its Queens Park works and were considered both good looking and excellent performers.[1]

## Numbering

### G&SWR

Originally numbered 128 and 129, they became 512 and 513 in the G&SWR renumbering of 1919.

### LMS

After the 1923 [grouping](/source/Railways_Act_1921) they became [LMS](/source/London%2C_Midland_and_Scottish_Railway) numbers 14673 and 14674, but were scrapped in 1933 and 1934 under the LMS drive for standardisation.

## Features

The 128 class, along with the 381 class, were the only G&SWR locomotives to use the 4-6-0 wheel arrangement, and were also the only G&SWR locos to have [Belpaire fireboxes](/source/Belpaire_firebox). As originally built, No.129 had a Weir [feedwater heater](/source/Feedwater_heater) mounted on top of the boiler between the chimney and the dome, but this was removed in 1919. The same locomotive operated for a period as a [4-4-2](/source/4-4-2_(locomotive)) after it broke a trailing rod.[1]

## References

1. ^ [***a***](#cite_ref-RM_1-0) [***b***](#cite_ref-RM_1-1) Stewart, W.D. (March 1971). "Manson's 128 class 4-6-0". *Railway Modeller*. Vol. 22, no. 245. Beer: Peco publications & publicity Ltd. p. 91.

- [Casserley, H. C.](/source/H._C._Casserley) & Johnston, Stuart W. (1974) [1966]. *Locomotives at the Grouping 3: London, Midland and Scottish Railway*. Shepperton, Surrey: [Ian Allan](/source/Ian_Allan_Publishing). p. 149. [ISBN](/source/ISBN_(identifier)) [0-7110-0554-0](https://en.wikipedia.org/wiki/Special:BookSources/0-7110-0554-0).

- Baxter, Bertram (1984). Baxter, David (ed.). *British Locomotive Catalogue 1825–1923*. Vol. 4: Scottish and remaining English Companies in the LMS Group. Ashbourne, Derbyshire: Moorland Publishing Company. p. 162.

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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