| LMS Stanier 3-cylinder 2-6-4T | |
|---|---|
| LMS Stanier 3-cylinder 2-6-4T No. 2500 displayed at the National Railway Museum, York, in July 2003 | |
| Power type | Steam |
| Designer | William Stanier |
| Builder | LMS Derby Works |
| Build date | 1934 |
| Total produced | 37 |
| Configuration | 2-6-4T |
| UIC classification | 1'C2'ht |
| 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 (1.75 m) |
| Trailing wheel diameter |
3 ft 3 1⁄2 in (1.003 m) |
| Wheelbase | 38.5 ft (11.7 m) |
| Length | 47 ft 2 3⁄4 in (14.395 m) |
| Width | 8 ft 11 1⁄2 in (2.731 m) |
| Height | 12 ft 10 1⁄2 in (3.924 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 psi (1.4 MPa) |
| Firegrate area | 25 sq ft (2.3 m2) |
| Heating surface: Tubes |
1,011 sq ft (93.9 m2) |
| Heating surface: Firebox |
25 sq ft (2.3 m2) |
| Superheater area | 160 sq ft (15 m2) to 154 sq ft (14.3 m2) |
| Cylinders | Three |
| Cylinder size | 16 × 26 in (410 × 660 mm) |
| Class | LMS: 4P BR: 4MT |
| Number | LMS 2500–2536 BR 42500–42536 |
| Withdrawn | 1960–1962 |
| Disposition | One preserved, remainder scrapped |
LMS 3-Cylindered Stanier 2-6-4T is a class of steam locomotive designed for work over the London, Tilbury and Southend Railway. All 2500-36 were built in 1934 at Derby Works. 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-cylindered design.
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.
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.
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