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LSWR Drummond L12 class 4-4-0

photograph: Ted Pettman/Mike Morant collection

L12 Class N°419 photographed on shed at Stewarts lane with D1 class N°1494 behind
Dugald Drummond's twenty L12 class express passenger 4-4-0s, built in 1904 and 5, were an adaptation of his S11 mixed traffic class for express work, principally on the Bouremouth line -the main differences being 6' 7" driving wheels and a higher-pitched boiler. As with the S11, the frames are those from the earlier T9 class of 1899. They were not, however, an improvement on these earlier locos. Initially rostered to Nine Elms, Bournemouth and Salisbury, the class was later also shedded at Exmouth Junction where they shared the Plymouth Ocean Liner special traffic with the S11 class. The class achieved some notoriety when one of their number, N°421, was the locomotive involved in the Salisbury accident of 10 June 1906 that effectively put paid to the competition between the GWR and the LSWR for the Ocean Liner traffic.

Once again built as saturated locomotives, they were subsequently superheated with "Eastleigh" superheaters and the accompanying larger smokebox that served to improve their somewhat "stubby" appearance. The first, N°421, was so fitted in 1915 but the remainder of the class had to wait until after the end of the First World War. Some of the locomotives retained their tubular feed water heaters for several years after superheating with the boiler feed being by hot water injectors. These original superheaters were later replaced by ones of the Maunsell pattern. In 1926 three locos, numbers 421, 423 and 424, were used in an oil-burning experiment.

The whole class survived to be taken into British Railways stock, but withdrawal began in April 1951, with only two still in service beyond the end of that year.
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  • 416
     
    N°416 probably photographed on the Brighton line, south of Three Bridges.
    Photograph: Dr. Ian C. Allan/Mike Morant collection.
  • 430
    Salfords
    N°430 at Salfords whilst hauling a down London Bridge - Portsmouth express.
    Photograph: Dr. Ian C. Allan/Mike Morant collection.
  • 434
    Aldershot
    N°434 on an Up train at Aldershot.
    Photograph: Dr. Ian C. Allan/Mike Morant collection.
  • L12
    Cheam
    An unidentified Drummond L12 on down Portsmouth express passing through Cheam station.
    Photograph: Dr. Ian C. Allan/Mike Morant collection.
  • 30421
     
    In early BR days N°421, carrying the legend "SOUTHERN" on the tender and her BR number on the cabside. The malachite liveried Battle of Britain light pacific behind N°421 has no coupling nor connecting rods.
    Photograph: Mike Morant collection.
  • 30429
     
    N°30429 also in early BR livery, but with the legend "BRITISH RAILWAYS" on the tender.
    Photograph: Mike Morant collection.

Technical Details

Introduced:
Driving Wheel:
Bogie Wheel:
Length:
Weight:

Water Capacity:
Cylinders (2):
Boiler Pressure:
Tractive Effort:
Coal Capacity:
BR Power Classification:
 1904
6 ft 7ins
3 ft 7ins
63 ft 9ins
98 tons 1 cwt
100 tons 2 cwt (after superheating)
4,000 gals
19 in x 26 in
175 lb sq in
17,670 lbs
5 tons
3P

Data

LSWR/SR N° # BR N° Built Eastleigh S/H Maunsell S/H Withdrawn
415 30415 Jun 1904 Oct 1920 Apr 1927 Jan 1953
416 30416 Jun 1904 Feb 1919 Jun 1925 Jun 1951
417 30417 Jun 1904 Mar 1921 Jul 1925 Oct 1951
418 30418 Jul 1904 Oct 1919 Jun 1929 Jun 1951
419 30419 Jul 1904 Mar 1919 May 1925 Nov 1951
420 30420 Sep 1904 Mar 1922 Jan 1926 Sep 1951
421 30421 Sep 1904 Jul 1915 May 1925 Sep 1951
422 30422 Oct 1904 Aug 1920 Jul 1925 Aug 1951
423 30423 Oct 1904 Jun 1919 Sep 1926 Jul 1951
424 30424 Nov 1904 Nov 1919 Aug 1925 Jul 1951
425 30425 Nov 1904 Oct 1920 May 1925 Aug 1951
426 30426 Dec 1904 May 1919 Sep 1926 Oct 1951
427 30427 Dec 1904 Jan 1922 Dec 1925 Nov 1951
428 30428 Jan 1905 Mar 1920 Oct 1925 Apr 1951
429 30429 Jan 1905 Feb 1922 May 1927 Sep 1951
430 30430 Feb 1905 Sep 1919 Jul 1925 Mar 1951
431 30431 Feb 1905 Sep 1921 Jun 1925 Sep 1951
432 30432 Feb 1905 Feb 1920 Nov 1925 Sep 1951
433 30433 Mar 1905 Jun 1919 May 1925 Nov 1951
434 30434 Mar 1905 Jun 1922 Nov 1928 Feb 1955
#  Between 1923 and 1928 SR numbers were the L&SWR numbers with the added prefix 'E', although the prefix may not have been removed until some time later!

This page was last updated 3 May 2011

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