LNWR 380 Class

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LNWR 380 Class
Swansea Paxton Street 1 Locomotive Depot geograph-2210749.jpg
No. 7941 at Swansea Paxton Street depot in 1946
Type and origin
Power typeSteam
Designer H. P. M. Beames
Build date1923–1924
Total produced30
Specifications
Configuration:
   Whyte 0-8-4T
   UIC D′2 h2t
Gauge 4 ft 8+12 in (1,435 mm)
Driver dia.4 ft 5+12 in (1.359 m)
Loco weight88 long tons 0 cwt (197,100 lb or 89.4 t)
Boiler pressure185 psi (1.28 MPa)
Cylinder size 20.5 in × 24 in (521 mm × 610 mm)
Valve gear Joy
Valve typePiston valves
Performance figures
Tractive effort 29,815 lbf (132.62 kN)
Career
Operators LNWR  » LMS  » BR
Power classLMS: 5F
Withdrawn1944–1951
DispositionAll scrapped

The LNWR 380 Class was a class of 0-8-4T steam tank locomotives designed by H. P. M. Beames. Although designed under the LNWR regime they appeared as LMS locomotives after the 1923 grouping. They were essentially an extended version of the 1185 Class 0-8-2T with a longer bunker, and were also related to the 0-8-0 freight engines. Their main area of work was to be in South Wales.

Contents

Numbering

The first thirteen were given LNWR numbers when new, because the LMS numbering scheme had not yet been finalised. The last seventeen carried LMS numbers 7943–7959 from new, although the first two of these had been allotted LNWR numbers (which they never carried in service). The first thirteen were renumbered 7930–7942 between 1926 and 1928. The LMS gave them the power classification 5F. [1] Withdrawal began in 1944. Fourteen survived into British Railways ownership in 1948 and were to be renumbered between 47930 and 47959 (i.e. the LMS numbers increased by 40000), but only two survived long enough to be renumbered 47931 and 47937, the last withdrawal occurring in 1951. [2]

Notes

  1. Casserley & Johnston 1974, p. 86.
  2. Baxter 1979, pp. 302–3.

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References

Further reading