LNER Class D49
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| LNER Class D49 | |
|---|---|
 Preserved D49 class no. 246 Morayshire at Doncaster Works | |
| Specifications | |
| Power type | Steam |
| Designer | Nigel Gresley |
| Builder | LNER Darlington Works |
| Build date | 1927–1935 |
| Total produced | 76 |
| Configuration | 4-4-0 |
| UIC classification | 2′B h3 |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter | 3 ft 1 1⁄4 in (0.946 m) |
| Driver diameter | 6 ft 8 in (2.032 m) |
| Axle load | 21.25 long tons (21.59 t) |
| Weight on drivers | 42.00 long tons (42.67 t) |
| Locomotive weight | 65.11 long tons (66.15 t) |
| Tender weight | 52.65 long tons (53.49 t) |
| Fuel capacity | Coal |
| Boiler | LNER Diagram 97 |
| Boiler pressure | 180 psi (1.24 MPa) |
| Firegrate area | 26 square feet (2.4 m2) |
| Heating surface: – Tubes | 871.75 square feet (80.988 m2) |
| – Flues | 354.53 square feet (32.937 m2) |
| – Firebox | 171.5 square feet (15.93 m2) |
| Superheater area | 271.8 square feet (25.25 m2) |
| Cylinders | Three |
| Cylinder size | 17 in × 26 in (432 mm × 660 mm) |
| Tractive effort | 21,556 lbf (95.9 kN) |
| Career | |
| Railroad(s) | LNER » BR |
| Power class | BR: 4P |
| Axle load class | Route availability 8 |
| Withdrawn | 1957–1961 |
| Disposition | One preserved, remainder scrapped |
The London and North Eastern Railway (LNER) D49 Class is a class of 4-4-0 steam locomotives designed by Nigel Gresley. They were named after fox hunts and shires.
One, 246/62712 Morayshire has been preserved on the Bo'ness and Kinneil Railway.
Sub-classes
- D49/1 Introduced 1927 with Walschaerts and, Gresley conjugated valve gear with 8-inch (200 mm) piston valves
- D49/2 Introduced 1928 with Lentz rotary-cam poppet valves
- D49/3 Introduced 1928 with Lentz oscillating-cam poppet valves
Names and numbers
Main article: List of LNER Class D49 locomotives
Images
62712 Morayshire before preservation at Hawick.
D49/2 Hunt 62757 The Burton in early British Railways colours during 1948
References
- Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Manners, F.; Neve, E.; Tee, D. F.; Yeadon, W. B. (April 1968). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 4: Tender Engines—Classes D25 to E7. Kenilworth: RCTS. pp. 86–113. ISBN 0-901115-01-0.
External links
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