LMS 3-Cylindered Stanier 2-6-4T

LMS Stanier Class 4P 3-cylinder 2-6-4T

42504 at Stratford, November 1961

Type and origin
Power type	Steam
Designer	William Stanier
Builder	LMS Derby Works
Build date	1934
Total produced	37

Specifications
Configuration	2-6-4T
UIC class	1′C2′ h3tb
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge
Leading dia.	3 ft 3 ¹⁄₂ in (1.003 m)
Driver dia.	5 ft 9 in (1.753 m)
Trailing dia.	3 ft 3 ¹⁄₂ in (1.003 m)
Wheelbase	38 ft 6 in (11.73 m)
Length	47 ft 2 ³⁄₄ in (14.40 m)
Width	8 ft 11 ¹⁄₂ in (2.73 m)
Height	12 ft 10 ¹⁄₂ in (3.92 m)
Loco weight	92.25 long tons (93.73 t; 103.32 short tons)
Fuel type	Coal
Fuel capacity	3.50 long tons (3.56 t; 3.92 short tons)
Water cap	2,000 imp gal (9,100 l; 2,400 US gal)
Firebox: • Firegrate area	25 sq ft (2.3 m²)
Boiler	LMS type 4C
Boiler pressure	200 lbf/in² (1.4 MPa)
Heating surface: • Tubes and flues	1,011 sq ft (93.9 m²)
• Firebox	137 sq ft (12.7 m²)
Superheater:
• Heating area	160 to 154 sq ft (14.9 to 14.3 m²)
Cylinders	Three
Cylinder size	16 in × 26 in (406 mm × 660 mm)

Performance figures
Tractive effort	24,598 lbf (109.42 kN)

Career
Operators	London, Midland and Scottish Railway → British Railways
Power class	LMS: 4P BR: 4MT
Numbers	LMS 2500–2536 BR 42500–42536
Withdrawn	1960–1962
Disposition	One preserved, remainder scrapped

LMS Stanier Class 4P 3-Cylinder 2-6-4T is a class of steam locomotive designed for work over the London, Tilbury and Southend Railway. All 37 were built in 1934 at Derby Works and were numbered 2500–2536. The third cylinder was provided to allow increased acceleration between the many stops on the L.T.&S.R. line. From 1935 the LMS switched to constructing a very similar, simpler, 2-cylinder design. In 1941 two of the class had just been released from overhaul from Derby Works at the same time as a Jubilee class 4-6-0 failed in Derby station. The two tanks took over and got the train into St Pancras only 25 minutes late.

Production

No. 2500 was the first of the 37 express passenger tank locomotives designed specifically for the London Tilbury and Southend line of the London Midland & Scottish railway (LMS) as they were too powerful for mixed-traffic work. It was built in 1934 at LMS Crewe works.

Table of orders
numbers		Lot No.	date built	Built at
LMS	BR	Lot No.	date built	Built at
2500–04	42500–04	102	1934	Derby
2505–36	42505–36	116	1934	Derby

Withdrawal

The class were withdrawn from 1960 to 1962.

Table of withdrawals
Year	Quantity in service at start of year	Quantity withdrawn	Locomotive numbers
1960	37	1	42512.
1961	36	7	42506/07/10/21/24/31/34.
1962	29	29	42500–05/08/09/11/13–20/22/23/25–30/32/33/35/36.

Preservation

LMS 2500 displayed at the National Railway Museum, York, April 2013

No. 2500 has survived and is on display at the National Railway Museum's Shildon Locomotion Museum. It is the sole survivor of this class and is painted in LMS lined black livery.

In fiction

Rusty from Starlight Express is based on an engine of this class.

References

Rowledge, J.W.P. (1975). Engines of the LMS built 1923–51. Oxford: Oxford Publishing Company. ISBN 0-902888-59-5.

External links

Wikimedia Commons has media related to LMS Stanier Class 4 3-cylinder 2-6-4T.

London, Midland and Scottish Railway locomotives

Hughes (1923–1925)	5MT Crab

Fowler (1925–1931)	2P 4-4-0 2F Dock Tank 3MT 2-6-2T 3F Jinty 4P Compound 4MT 2-6-4T 4F 0-6-0 6P Patriot 7P Royal Scot 7F 0-8-0 Garratt 6399 Fury

Stanier (1932–1944)	2P 0-4-4T 3MT 2-6-2T 4MT 2-6-4T (2 cylinders) 4MT 2-6-4T (3 cylinders) 5MT 2-6-0 5MT Black Five 6P Jubilee 8P Princess Royal 8P Coronation 8F 2-8-0 Turbomotive

Fairburn (1944–1945)	4MT 2-6-4T

Ivatt (1945–1947)	2MT 2-6-0 2MT 2-6-2T 4MT 2-6-0 NCC Class WT 2-6-4 Diesels 10000–10001

Diesel shunters	1831 7050 7051 7052 7053 7054 7055–7056 7057 7058 7059–7068 7069–7079 7080–7119 7120–7129

Other designs	ROD 2-8-0 Kitson 0-4-0ST Sentinels 7160–7163 Sentinel 7164 Sentinel 7192

British Railways steam locomotives GWR locomotives LMS locomotives LNER locomotives Southern Railway locomotives

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