LNWR 1185 Class

The LNWR 1185 Class was a class of 0-8-2T steam tank locomotives designed by Charles Bowen-Cooke and introduced in 1911. They passed into LMS ownership in 1923 and 8 survived to British Railways ownership in 1948. British Railways numbers were 47875-47896 (with gaps).

LNWR 1185 Class
No. 289 in photographic grey livery
Type and origin
Power typeSteam
DesignerCharles Bowen-Cooke
BuilderLNWR Crewe Works
Serial number5040–5049, 5247–5256, 5357–5366
Build date1911–1917
Total produced30
Specifications
Configuration:
​
 • Whyte0-8-2T
 • UICD1 n2t
Gauge4 ft 8 1⁄2 in (1,435 mm)
Driver dia.4 ft 3 in (1.295 m)
(4 ft 5½ in with 3 in tyres)[1][2][3]
Trailing dia.3 ft 9 in (1.143 m)
(with 3 in tyres)[1][3]
Wheelbase5 ft 9 in + 5 ft 9 in + 5 ft 9 in + 6 ft 3 in = 23 ft 6 in[1]
Axle load13T-0C+17T-5C+15T-5C+14T-0C+13T-0C = 72T-10C[1][2]
Adhesive weight59 long tons 10 cwt (133,300 lb or 60.5 t)
Loco weight72 long tons 10 cwt (162,400 lb or 73.7 t)
Fuel typeCoal
Fuel capacity2 long tons 15 cwt (6,200 lb or 2.8 t)[1]
Water cap1,200 imp gal (5,500 l; 1,400 US gal)[1]
Firebox:
 • Firegrate area		23.6 sq ft (2.19 m2)[1]
BoilerPitch: 8 ft 3 in (2.51 m)[1]
Boiler pressure170 lbf/in2 (1.17 MPa)[1][2]
Heating surface1,953.25 sq ft (181.463 m2)[1]
 • Tubes276 × 1⅞ in o/s dia.[1]
1806.5 sq.ft.
 • Firebox146.75 sq ft (13.634 m2)
CylindersTwo, inside
Cylinder size20 1⁄2 in × 24 in (521 mm × 610 mm) [corrected from 26 in][4][1][2][3]
Valve gearJoy valve gear
Performance figures
Tractive effort27,240 lbf (121.2 kN)[2]
Career
Operators
Power classLMS/BR: 6F
First run1911
Withdrawn1934–1953[5]
DispositionAll scrapped

Career

30 engines, designed under the supervision of C J Bowen-Cooke, and built at Crewe during 1911-1917. Intended for duties formerly needing two locomotives. Essentially a tank version of the G class 0-8-0s. When introduced they had the then new style of 12″ letters for the company's initials on the tank sides. They were fitted with saturated "Precursor" class boilers with lagged ends, round-top fireboxes, and sloping coal bunkers.[4] The main wheels were coupled by three overlapping rods and the third pair of wheels were flangeless. Lever actuated Joy reversing gear appeared in-lieu of the normal Ramsbottom screw system. The earlier engines initially had slender tapered Cooke buffers but these were replaced by those of standard Webb pattern: The latter type was fitted from new on later engines. Braking was by steam, but vacuum brakes were provided to operate fitted or passenger stock if required.[1]

LNWR/LMS stock list
LNWR No.Crewe Works No.Build date[6]LMS No.[lower-alpha 1]Withdrawn[6]Notes
1185[3][4]5040December 19117870December 1945
1665[4]5041December 19117872October 1936
1548[4][7]5042December 19117871May 1935Briefly No.1790.
289[8]5043January 19127873January 1935
1163[8]5044January 19127874June 1935
1494[8]5045January 19127875August 1948
1592[8]5046January 19127876July 1947
1659[8]5047January 19127877February 1953[lower-alpha 2]
1663[7]5048January 19127878June 1947
2013[7]5049February 19127879December 1936
585247August 19157882October 1934
4825248August 19157880March 1937
5635249August 19157881July 1951[lower-alpha 2]
7365250August 19157883March 1935
10905251September 19157884June 1951[lower-alpha 2]
11245252September 19157885March 1950
14145253September 19157886September 1948
15145254September 19157887August 1948
15155255September 19157888December 1948
22775256September 19157889October 1934
245357December 19167890June 1939
925358December 19167891June 1946
7145359January 19177892February 1948
12915360January 19177893October 1934
13315361January 19177894September 1939
21055362January 19177895October 1934
22945363January 19177896November 1950[lower-alpha 2]
23415364February 19177897June 1946
23485365February 19177898January 1946
23915366February 19177899August 1935
  1. LMS numbers were applied piecemeal during 1925–1928 but not in the same sequence as construction.
  2. Only these engines ever carried their post-1947 numbers [adding 40000 to those of the LMS].
No. 7892 in 1948, heading a line of ex-LNWR locomotives awaiting scrap at Crewe Works

During the Depression years many of the class spent time in store for want of work and almost half were scrapped. Ten, however, survived to be taken into nationalised stock at the start of 1948.[9]

No.1090, as BR No.47884, achieved the highest calculated service mileage of 732,425 miles. Others ran 715,830 miles (No.47896), 701,005 miles (No.47877), 692,706 miles (No.47881) and 553,433 miles (No.7885).[9]

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References
  1. Talbot, Edward (1984). An Illustrated History of LNWR Engines. Oxford Publishing.CS1 maint: ref=harv (link)
  2. H C Casserley & S W Johnson (1966). Locomotives At The Grouping No.3 London Midland and Scottish. Ian Allan.
  3. The Locomotive Magazine and Railway Carriage and Wagon Review, 15 December 1911
  4. The Locomotive Magazine and Railway Carriage and Wagon Review, 15 January 1912
  5. Baxter 1979, pp. 301–302.
  6. Baxter 1979, p. 302.
  7. The Locomotive Magazine and Railway Carriage and Wagon Review, 15 March 1912
  8. The Locomotive Magazine and Railway Carriage and Wagon Review, 15 February 1912
  9. Talbot, Edward (2002). The London & North Western Railway Eight-Coupled Goods Engines. ISBN 978-0-9542787-0-0.CS1 maint: ref=harv (link)
  • Baxter, Bertram (1979). Baxter, David (ed.). British Locomotive Catalogue 1825–1923, Volume 2B: London and North Western Railway and its constituent companies. Ashbourne, Derbyshire: Moorland Publishing Company. pp. 301–302. ISBN 0-903485-84-2.
  • Casserley, H. C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. ISBN 0-7110-0554-0.
  • Talbot, Edward (2002). The London & North Western Railway Eight-Coupled Goods Engines. ISBN 978-0-9542787-0-0.CS1 maint: ref=harv (link)

Further reading
  • Tuplin, W. A. (1963). North Western Steam. George Allen & Unwin.CS1 maint: ref=harv (link)
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