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 classification | 1′C2′ h3tb |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter | 3 ft 3 1⁄2 in (1.003 m) |
| Driver diameter | 5 ft 9 in (1.753 m) |
| Trailing wheel diameter | 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) |
| Locomotive weight | 92.25 long tons (93.73 t) |
| Fuel type | Coal |
| Fuel capacity | 3.50 long tons (3.56 t) |
| Water capacity | 2,000 imp gal (9,100 l; 2,400 US gal) |
| Boiler | LMS type 4C |
| Boiler pressure | 200 lbf/in2 (1.4 MPa) |
| Firegrate area | 25 sq ft (2.3 m2) |
| Heating surface: – Tubes and flues | 1,011 sq ft (93.9 m2) |
| – Firebox | 137 sq ft (12.7 m2) |
| Superheater 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 | |
| Operator(s) |
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| Power class |
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| Number(s) |
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| Withdrawn | 1960–1962 |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.
Preservation
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No. 2500 has survived and is on display at the National Railway Museum in York. 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
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Wikimedia Commons has media related to LMS Stanier Class 4 3-cylinder 2-6-4T. |
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