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.

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: ​  • Whyte 4-4-0  • UIC 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) Length 58 ft 8.75 in (17.901 m) Width 8 ft 7 in (2.616 m) Height 13 ft 0 in (3.96 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 m2) Boiler LNER Diagram 97 Boiler pressure 180 psi (1.24 MPa) 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: ​  • Heating area 271.8 square feet (25.25 m2) Cylinders Three Cylinder size 17 in × 26 in (432 mm × 660 mm)
Performance figures Tractive effort 21,556 lbf (95.9 kN)
Career Operators London and North Eastern Railway » British Railways Power class BR: 4P Axle load class Route availability 8 Locale North Eastern Region Withdrawn 1957–1961 Disposition One preserved, remainder scrapped

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]
• On August 16, 1952, Locomotive No. 62768 The Morpeth was involved in a collision between a light engine and a passenger train at Dragon Junction near Starbeck. The other two locomotives involved were also Ex-LNER D49's. No.62758 The Cattistock and the other unknown D49 were repaired after the accident but The Morpeth sustained substantial damage and was withdrawn and scrapped that same year.[2]
• In July 1958, locomotive No. 62703 Hertfordshire ran into the turntable pit at Bridlington, Yorkshire and rolled onto its side.[3]

Images

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

Wikimedia Commons has media related to LNER Class D49.

• D49 Hunt/Shire page on the LNER Encyclopedia
• D49 No. 62719 Peebles-shire in 1953 on YouTube

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