L&YR Hughes 4-6-4T
| Lancashire & Yorkshire Railway Hughes 4-6-4T | |
|---|---|
|
11114 in photographic grey | |
| Type and origin | |
| Power type | Steam |
| Designer | George Hughes |
| Builder | LMS Horwich Works |
| Order number | LMS Lot No. 2 |
| Serial number | Horwich 1354–1363 |
| Build date | 1924 |
| Total produced | 10 |
| Specifications | |
| Configuration | 4-6-4T |
| UIC classification | 2'C2't |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter | 3 ft 0 3⁄8 in (0.924 m) |
| Driver diameter | 6 ft 3 in (1.905 m) |
| Length | 49 ft 10 1⁄2 in (15.20 m) |
| Locomotive weight | 99.95 long tons (101.55 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 ‘RS’ |
| Boiler pressure | 180 psi (1.24 MPa) |
| Firegrate area | 29.5 sq ft (2.74 m2) |
| Heating surface: – Tubes and flues | 1,817 sq ft (168.8 m2) |
| Superheater area | 395–430 sq ft (36.7–39.9 m2) |
| Cylinders | Four |
| Cylinder size | 16.5 in × 26 in (419 mm × 660 mm) |
| Valve gear | Walschaerts |
| Valve type | Piston valves |
| Performance figures | |
| Tractive effort | 28,880 lbf (128.5 kN) |
| Train brakes | Vacuum |
| Career | |
| Operator(s) | LMS |
| Power class | 5P |
| Number(s) | 11110–11119 |
| Nicknames | Dreadnought tank |
| Withdrawn | 1938–1942 |
| Disposition | All scrapped |
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The Lancashire and Yorkshire Railway Hughes 4-6-4T was a class of steam locomotives. They were a 4-6-4T tank engine version of the L&YR Class 8 ("Dreadnought" Class 4-6-0), hence they were known as "Dreadnought tanks".
Construction
All were actually built by the London, Midland and Scottish Railway in 1924 after the grouping, albeit at the Lancashire and Yorkshire Railway's Horwich Works.
Numbering
They had been allocated L&Y numbers 1684–1693, but these were never carried and there was no L&YR class number. The LMS gave them the numbers 11110–11119, and the power classification 5P.
Orders modified or cancelled
Another 20 of this class were ordered but turned out as further examples of the L&YR Class 8. Orders for an additional 30 were cancelled. Like the Class 8s on which they were based, they were not particularly successful.
Withdrawal
Withdrawals started in 1938, with three engines (11112, 11115, 11116), one each in 1939 and 1940 (11113 and 11111 respectively), four in 1941 (11114, 11117–11119) and the last (11110) in 1942. None was preserved.
References
- 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.
- Rowledge, J.W.P. (1975). Engines of the LMS built 1923–51. Oxford: Oxford Publishing Company. ISBN 0-902888-59-5.
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