Southern Railway (SR) No. 850 Lord Nelson (originally E850, BR no. 30850) is a preserved British steam locomotive of the Lord Nelson class. It forms part of the United Kingdom's National Railway Collection.

850 Lord Nelson
850 Lord Nelson seen in preservation, in May 2007
Type and origin Power type Steam Designer Richard Maunsell Builder Eastleigh Works Build date 1926 Website collection.sciencemuseum.org.uk/objects/co205792/southern-railway-lord-nelson-steam-locomotive
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2′C h4 Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Leading dia. 3 ft 1 in (0.940 m) Driver dia. 6 ft 7 in (2.007 m) Length 69 ft 9+3⁄4 in (21.3 m) Loco weight 83 long tons 10 cwt (187,000 lb or 84.8 t) Tender weight 57 long tons 19 cwt (129,800 lb or 58.9 t) Fuel type Coal Fuel capacity 5 long tons 0 cwt (11,200 lb or 5.1 t) (5.6 short tons) Water cap. 5,000 imp gal (23,000 l; 6,000 US gal) Firebox:  • Firegrate area 33 sq ft (3.1 m2) Boiler pressure 220 lbf/in2 (1.52 MPa) Cylinders Four Cylinder size 16+1⁄2 in × 26 in (419 mm × 660 mm)
Performance figures Tractive effort 33,510 lbf (149.06 kN)
Career Operators Southern Railway → British Railways (Southern Region) Class Lord Nelson class Power class BR: 7P Numbers 850 Official name Lord Nelson Locale Great Britain Withdrawn August 1962

Overview

850 was built at Eastleigh Works in 1926 to a design by R E L Maunsell, as the prototype for the sixteen-strong Lord Nelson class, and named after Horatio Nelson.

The Southern Railway became part of British Railways (BR) in 1948 through nationalisation, and was renumbered 30850. Under BR the class were given the power classification 7P. It was withdrawn in August 1962. It was preserved as part of the National Railway Collection, and is the sole survivor of the class. It has run in preservation, including on the main line, where its TOPS number is 98750. Its boiler certification expired in 2015.

External links

• Official website

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