SEmG

Drummond L11 class 4-4-0

170

Nº170 in Southern days approaches Beaulieu Road station from the Bournemouth direction.

photograph: Mike Morant collection

 
Following his K10 class of 1897, Dugald Drummond produced another 4-4-0 using the same firebox though with a coupled wheelbase 1' longer at 10' 0", the L11 class, in 1903. Whilst the K10s were known as "Small Hoppers", the L11s were the "Large Hoppers". The class was designed due to the need for tender engines to work slow passenger, van, or pick-up goods traffic. The L11s had the excellent, free-steaming, boiler from his most successful of all passenger locomotives, the T9 class of 1899. Despite the smaller wheels fitted (5' 7" against the T9's 6' 7") these excellent mixed traffic locos could more than hold their own when called upon to help out the Greyhounds with summer Saturday holiday traffic. 29 of the 40 members of the class were coupled to Drummond's 6 wheel outside framed tender whilst the other eleven had 4,000 gallon bogie tenders. As time progressed more and more of the class were given the bogie tender (through interchange with T9s) until all bar two, numbers 440 and 441, were so fitted. These two were the only two of the class to have Westinghouse brake control (until some time between 1931 and 1936) as well as the vacuum brake, the remainder of the class having vacuum only.

 
170

Nº408 in London South Western livery showing the patch on the side of the firebox for Drummond's "Steam Dryer" system

>Scan from Howden, J.R. (1907) The Boys' Book of Locomotives

 

Their one drawback was the marine type big ends, as fitted to the T9s, which for some reason were a big problem on the L11s, resulting in them not being worked quite as hard as the T9s were. Unlike the T9s, and many of Drummond's other classes, the L11s were not subsequently superheated and, although they remained on their "home territory" after the formation of the Southern Railway, some were sent to Ashford for repair. The whole class lasted into British Railways' days, but only just! Withdrawals started in February 1949 and by October 1952 the whole class had gone.

 
170

Nº172 in Southern Livery at Waterloo

photograph: Mike Morant collection

 

Technical Details

Introduced:
Bogie Wheel:
Driving Wheel:
Length:
Total Weight:
Cylinders (2):
Boiler Pressure:
Tractive Effort:
Water Capacity:
Coal Capacity:

 

1903
3 ft 7 ins
5 ft 7 ins
46 ft 10 ins
50 tons 11 cwt
18½ x 26 in
175 lb sq in
16,750 lb
3,500/4000 galls
4 ton 0 cwt
 
The L&SWR was better than the other Southern Companies in keeping locomotive classes more or less in consecutive numbers, though not perfect! The following table is set out in order of build:
LSWR Nº SR Nº # BR Nº Built Withdrawn
154 154 30154 May 1903 Apr 1951
155 155 30155 May 1903 Mar 1951
156 156 30156 Jun 1903 Mar 1951
157 157 30157 Jun 1903 Mar 1952
158 158 30158 Jun 1903 Dec 1950
159 159 30159 Sep 1903 Mar 1951
161 161 30161 Sep 1903 Jul 1950
163 163 30163 Sep 1903 Oct 1951
164 164 30164 Oct 1903 Oct 1951
165 165 30165 Oct 1903 Apr 1951
134 134 30134 Apr 1904 Mar 1951
148 148 30148 Apr 1904 Mar 1952
166 166 30166 Apr 1904 Aug 1950
167 167 30167 May 1904 Dec 1949
168 168 30168 May 1904 Mar 1950
169 169 30169 Aug 1904 Sep 1949
170 170 30170 Aug 1904 Mar 1952
171 171 30171 Sep 1904 Aug 1951
172 172 30172 Sep 1904 Oct 1952
173 173 30173 Sep 1904 May 1951
174 174 30174 May 1906 Aug 1951
175 175 30175 May 1906 Nov 1951
407 407 30407 May 1906 Nov 1950
408 408 30408 May 1906 Apr 1951
409 409 30409 May 1906 Jun 1951
410 410 30410 Jun 1906 Feb 1949
411 411 30411 Jun 1906 Apr 1952
412 412 30412 Jul 1906 Dec 1950
413 413 30413 Jul 1906 Mar 1951
414 414 30414 Jul 1906 May 1951
405 405 30405 Sep 1906 Mar 1951
406 406 30406 Sep 1906 Jun 1951
435 435 30435 Oct 1906 Dec 1949
436 436 30436 Nov 1906 Aug 1951
437 437 30437 Dec 1906 Apr 1952
438 438 30438 Mar 1907 Oct 1951
439 439 30439 Mar 1907 Sep 1949
440 § 440 30440 Apr 1907 Aug 1949
441 § 441 30441 May 1907 May 1951
442 442 30442 May 1907 Nov 1951
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!
§  Fitted with Westinghouse braking as well as vacuum. Removed sometime between 1931 and 1936.

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This page was last updated 15 December 2013

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