LNER Class A4 4498 Sir Nigel Gresley
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| Type and origin | |
|---|---|
| Power type | Steam |
| Designer | Sir Nigel Gresley |
| Builder | LNER, Doncaster Works |
| Serial number | 1863 |
| Build date | 30 October 1937 |
| Specifications | |
|---|---|
| Configuration | 4-6-2 |
| UIC class | 2'C1h3 |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
| Leading dia. | 3 ft 2 in (0.965 m) |
| Driver dia. | 6 ft 8 in (2.032 m) |
| Trailing dia. | 3 ft 8 in (1.118 m) |
| Boiler pressure | 250 psi (1.72 MPa) |
| Cylinders | Three |
| Cylinder size | 18.5 in × 26 in (470 mm × 660 mm) |
| Loco brake | Steam |
| Train brakes | LNER/BR: Vacuum Now: Dual air and Vacuum |
| Performance figures | |
|---|---|
| Maximum speed | 112 mph (180 km/h) |
| Tractive effort | 35,455 lbf (157.7 kN) |
| Career | |
|---|---|
| Operators | London and North Eastern Railway |
| Class | A4 |
| Numbers | LNER 4498, LNER 7 (from 1946), BR 60007 (from 1948) |
| Official name | Sir Nigel Gresley |
| Withdrawn | 1 February 1966 |
| Current owner | Sir Nigel Gresley Locomotive Preservation Trust Ltd. |
| Disposition | Under overhaul at National Railway Museum; certified for use on Network Rail |
London and North Eastern Railway (LNER) A4 Class number 4498 (original), 7 (LNER 1946) and 60007 (BR), named Sir Nigel Gresley is a preserved British steam locomotive.
As with the other members of the 35-strong class, Sir Nigel Gresley wore many liveries throughout its career. It was released to traffic on 30 October 1937 in the standard LNER garter blue of the A4 Pacifics. New numbers and letters for the tender in stainless steel were added in a general overhaul 16 January 1939. Sir Nigel Gresley was repainted into wartime black with LNER markings on 21 February 1942. The next repaint was into black with NE markings on 20 October 1943, as a cutback. After the war, Sir Nigel Gresley regained LNER garter blue livery with red/white lining on 6 March 1947.
With the formation of British Railways came new liveries and Sir Nigel Gresley was painted into British Railways dark blue with black and white lining on 27 September 1950. The final livery change was into British Railways brunswick green livery on 17 April 1952. In preservation, Sir Nigel Gresley wore garter blue (with stainless steel letters and numbers as 4498 added later) from 1966 until its overhaul in the late 1990s, when it gained its current British Railways blue livery as 60007. This livery was retained again after the 2006 overhaul.
As with the earlier LNER A4 Pacifics, Sir Nigel Gresley was built with single chimney and side valances covering the wheels. The valances were removed to aid in maintenance on 21 February 1942. Sir Nigel Gresley gained its double chimney and Kylchap double blastpipe on 13 December 1957. 60007 also gained AWS equipment on 27 September 1950. A Smith-Stone type speed recorder was fitted on 30 June 1960.
Sir Nigel Gresley has had twelve boilers in its career: 8961 (from new); 8946 (from 4483 Kingfisher), 21 February 1942; 9489 (new boiler), 6 March 1947; 29271 (from 60024 Kingfisher), 27 September 1950; 29319 (new build), 17 April 1952; 29306 (spare), 19 October 1953; 29321 (from 60010 Dominion of Canada), 12 March 1955; 29314 (from 60026 Miles Beevor), 13 April 1957; 29324 (from 60015 Quicksilver), 13 December 1957; 29331 (new build), 16 April 1959; 27970 (new build), 7 October 1960 and finally 27966 (from 60016 Silver King), 25 October 1962.
Sir Nigel Gresley had two tenders in its career: 5329 from new build to 8 August 1943 and then 5324 from that time.
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