LNWR 1185 Class

LNWR 1185 Class
7892 in 1948, heading a line of ex-LNWR locomotives awaiting scrap at Crewe Works
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	0-8-2T
UIC classification	D1 n2t
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Driver diameter	4 ft 3 in (1.295 m) (4 ft 5½ in with 3 in tyres)^[1]^[2]^[3]
Trailing wheel diameter	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]
Weight on drivers	59 long tons 10 cwt (133,300 lb or 60.5 t)
Locomotive 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 capacity	1,200 imp gal (5,500 l; 1,400 US gal)^[1]
Boiler	Pitch: 8 ft 3 in (2.51 m)^[1]
Boiler pressure	170 lbf/in² (1.17 MPa)^[1]^[2]
Firegrate area	23.6 sq ft (2.19 m²)^[1]
Heating surface: – Tubes	276 × 1⅞ in o/s dia.^[1] 1806.5 sq.ft.
– Firebox	146.75 sq ft (13.634 m²)
– Total	1,953.25 sq ft (181.463 m²)^[1]
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
Operator(s)	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Withdrawn	1934–1953^[5]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

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).

Shunting tank engines. 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	01911-12-01-0000December 1911	7870	01945-12-01-0000December 1945
1665^[4]	5041	01911-12-01-0000December 1911	7872	01936-10-01-0000October 1936
1548^[4]^[7]	5042	01911-12-01-0000December 1911	7871	01935-05-01-0000May 1935	Briefly No.1790.
289^[8]	5043	01912-01-01-0000January 1912	7873	01935-01-01-0000January 1935
1163^[8]	5044	01912-01-01-0000January 1912	7874	01935-06-01-0000June 1935
1494^[8]	5045	01912-01-01-0000January 1912	7875	01948-08-01-0000August 1948
1592^[8]	5046	01912-01-01-0000January 1912	7876	01947-07-01-0000July 1947
1659^[8]	5047	01912-01-01-0000January 1912	7877	01953-02-01-0000February 1953	^{[lower-alpha 2]}
1663^[7]	5048	01912-01-01-0000January 1912	7878	01947-06-01-0000June 1947
2013^[7]	5049	01912-02-01-0000February 1912	7879	01936-12-01-0000December 1936
58	5247	01915-08-01-0000August 1915	7882	01934-10-01-0000October 1934
482	5248	01915-08-01-0000August 1915	7880	01937-03-01-0000March 1937
563	5249	01915-08-01-0000August 1915	7881	01951-07-01-0000July 1951	^{[lower-alpha 2]}
736	5250	01915-08-01-0000August 1915	7883	01935-03-01-0000March 1935
1090	5251	01915-09-01-0000September 1915	7884	01951-06-01-0000June 1951	^{[lower-alpha 2]}
1124	5252	01915-09-01-0000September 1915	7885	01950-03-01-0000March 1950
1414	5253	01915-09-01-0000September 1915	7886	01948-09-01-0000September 1948
1514	5254	01915-09-01-0000September 1915	7887	01948-08-01-0000August 1948
1515	5255	01915-09-01-0000September 1915	7888	01948-12-01-0000December 1948
2277	5256	01915-09-01-0000September 1915	7889	01934-10-01-0000October 1934
24	5357	01916-12-01-0000December 1916	7890	01939-06-01-0000June 1939
92	5358	01916-12-01-0000December 1916	7891	01946-06-01-0000June 1946
714	5359	01917-01-01-0000January 1917	7892	01948-02-01-0000February 1948
1291	5360	01917-01-01-0000January 1917	7893	01934-10-01-0000October 1934
1331	5361	01917-01-01-0000January 1917	7894	01939-09-01-0000September 1939
2105	5362	01917-01-01-0000January 1917	7895	01934-10-01-0000October 1934
2294	5363	01917-01-01-0000January 1917	7896	01950-11-01-0000November 1950	^{[lower-alpha 2]}
2341	5364	01917-02-01-0000February 1917	7897	01946-06-01-0000June 1946
2348	5365	01917-02-01-0000February 1917	7898	01946-01-01-0000January 1946
2391	5366	01917-02-01-0000February 1917	7899	01935-08-01-0000August 1935

↑ LMS numbers were applied piecemeal during 1925–1928 but not in the same sequence as construction.
↑ 2.0 2.1 2.2 2.3 Only these engines ever carried their post-1947 numbers [adding 40000 to those of the LMS].

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

↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 Talbot, Edward (1984). An Illustrated History of LNWR Engines. Oxford Publishing.
↑ 2.0 2.1 2.2 2.3 2.4 H C Casserley & S W Johnson, (1966). Locomotives At The Grouping No.3 London Midland and Scottish. Ian Allan.
↑ 3.0 3.1 3.2 3.3 The Locomotive Magazine and Railway Carriage and Wagon Review, 15 December 1911
↑ 4.0 4.1 4.2 4.3 4.4 The Locomotive Magazine and Railway Carriage and Wagon Review, 15 January 1912
↑ Baxter 1979, pp. 301–302.
↑ 6.0 6.1 Baxter 1979, p. 302.
↑ 7.0 7.1 7.2 The Locomotive Magazine and Railway Carriage and Wagon Review, 15 March 1912
↑ 8.0 8.1 8.2 8.3 8.4 The Locomotive Magazine and Railway Carriage and Wagon Review, 15 February 1912
↑ 9.0 9.1 Talbot, Edward (2002). The London & North Western Railway Eight-Coupled Goods Engines. ISBN 978-0-9542787-0-0.

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.

External links

Wikimedia Commons has media related to LNWR 1185 Class .

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Locomotives of the London and North Western Railway LMS locomotives British Railways steam locomotives

LNWR 1185 Class

References

Further reading

External links