LNER Class D49

LNER Class D49

Preserved D49 class no. 246 Morayshire at Doncaster Works

Type and origin Power type Steam Designer Nigel Gresley Builder LNER Darlington Works Build date 1927–1935 Total produced 76

Specifications Configuration 4-4-0 UIC class 2′B h3 Gauge 4 ft 8 ^1⁄2 in (1,435 mm) standard gauge Leading dia. 3 ft 1 ^1⁄4 in (0.946 m) Driver dia. 6 ft 8 in (2.032 m) Axle load 21.25 long tons (21.59 t; 23.80 short tons) Adhesive weight 42.00 long tons (42.67 t; 47.04 short tons) Loco weight 65.11 long tons (66.15 t; 72.92 short tons) Tender weight 52.65 long tons (53.49 t; 58.97 short tons) Fuel type Coal Firebox:  • Firegrate area 26 square feet (2.4 m^2) Boiler LNER Diagram 97 Boiler pressure 180 psi (1.24 MPa) Heating surface:  • Tubes 871.75 square feet (80.988 m^2)  • Flues 354.53 square feet (32.937 m^2)  • Firebox 171.5 square feet (15.93 m^2) Superheater: ​  • Heating area 271.8 square feet (25.25 m^2) Cylinders Three Cylinder size 17 in × 26 in (432 mm × 660 mm)

Performance figures Tractive effort 21,556 lbf (95.9 kN)

Career Operators LNER » BR Power class BR: 4P Axle load class Route availability 8 Withdrawn 1957–1961 Disposition One preserved, remainder scrapped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 (203 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

Accidents and incidents

• On 3 January 1931, locomotive No. 2758 Northumberland was hauling a passenger train that was derailed at Carlisle, Cumberland due to excessive speed through a curve. Three people were killed.^[1]
• In July 1958, locomotive No. 62703 Hertfordshire ran into the turntable pit at Bridlington, Yorkshire and rolled into its side.^[2]

Images

62712 Morayshire before preservation at Hawick.

D49/2 Hunt 62757 The Burton in early British Railways colours during 1948

References

1. Hall, Stanley (1990). The Railway Detectives. London: Ian Allan. p. 97. ISBN 0 7110 1929 0.
2. Hoole, Ken (1983). Trains in Trouble: Vol. 4. Redruth: Atlantic Books. p. 39. ISBN 0 906899 07 9.

• 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

• D49 Hunt/Shire page on the LNER Encyclopedia