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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 type Steam Designer Charles Bowen-Cooke Builder LNWR Crewe Works Serial number 5040–5049, 5247–5256, 5357–5366 Build date 1911–1917 Total produced 30
Specifications Configuration: ​  • Whyte 0-8-2T  • UIC D1 n2t Gauge 4 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] Wheelbase 5 ft 9 in + 5 ft 9 in + 5 ft 9 in + 6 ft 3 in = 23 ft 6 in[1] Axle load 13T-0C+17T-5C+15T-5C+14T-0C+13T-0C = 72T-10C[1][2] Adhesive weight 59 long tons 10 cwt (133,300 lb or 60.5 t) Loco weight 72 long tons 10 cwt (162,400 lb or 73.7 t) Fuel type Coal Fuel capacity 2 long tons 15 cwt (6,200 lb or 2.8 t)[1] Water cap. 1,200 imp gal (5,500 l; 1,400 US gal)[1] Firebox:  • Firegrate area 23.6 sq ft (2.19 m2)[1] Boiler Pitch: 8 ft 3 in (2.51 m)[1] Boiler pressure 170 lbf/in2 (1.17 MPa)[1][2] Heating surface 1,953.25 sq ft (181.463 m2)[1]  • Tubes 276 × 1⅞ in o/s dia.[1] 1806.5 sq.ft.  • Firebox 146.75 sq ft (13.634 m2) Cylinders Two, inside Cylinder size 20+1⁄2 in × 24 in (521 mm × 610 mm) [corrected from 26 in][4][1][2][3] Valve gear Joy valve gear
Performance figures Tractive effort 27,240 lbf (121.2 kN)[2]
Career Operators London and North Western Railway London, Midland and Scottish Railway British Railways Power class LMS/BR: 6F First run 1911 Withdrawn 1934–1953[5] Disposition All scrapped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]	5040	December 1911	7870	December 1945
1665[4]	5041	December 1911	7872	October 1936
1548[4][7]	5042	December 1911	7871	May 1935	Briefly No.1790.
289[8]	5043	January 1912	7873	January 1935
1163[8]	5044	January 1912	7874	June 1935
1494[8]	5045	January 1912	7875	August 1948
1592[8]	5046	January 1912	7876	July 1947
1659[8]	5047	January 1912	7877	February 1953	[lower-alpha 2]
1663[7]	5048	January 1912	7878	June 1947
2013[7]	5049	February 1912	7879	December 1936
58	5247	August 1915	7882	October 1934
482	5248	August 1915	7880	March 1937
563	5249	August 1915	7881	July 1951	[lower-alpha 2]
736	5250	August 1915	7883	March 1935
1090	5251	September 1915	7884	June 1951	[lower-alpha 2]
1124	5252	September 1915	7885	March 1950
1414	5253	September 1915	7886	September 1948
1514	5254	September 1915	7887	August 1948
1515	5255	September 1915	7888	December 1948
2277	5256	September 1915	7889	October 1934
24	5357	December 1916	7890	June 1939
92	5358	December 1916	7891	June 1946
714	5359	January 1917	7892	February 1948
1291	5360	January 1917	7893	October 1934
1331	5361	January 1917	7894	September 1939
2105	5362	January 1917	7895	October 1934
2294	5363	January 1917	7896	November 1950	[lower-alpha 2]
2341	5364	February 1917	7897	June 1946
2348	5365	February 1917	7898	January 1946
2391	5366	February 1917	7899	August 1935

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]

References

• 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.

Further reading

• Tuplin, W. A. (1963). North Western Steam. George Allen & Unwin.

External links

• Class 6F-A Details at Rail UK
• Goods Engines of LNWR
• LNWR/LMS Cooke "1185" Class 0-8-2T

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