GNR Class N2
| GNR Class N2 LNER Class N2 |
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|---|---|
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| Preserved 1744 at the North Norfolk Railway 2009 | |
| Power type | Steam |
| Designer | Nigel Gresley |
| Build date | 1920-1929 |
| Configuration | 0-6-2T |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Driver diameter | 5 ft 8 in (1.73 m) |
| Trailing wheel diameter |
3 ft 8 in (1.12 m) |
| Locomotive weight | 70.25–71.45 long tons (71.38–72.60 t) |
| Fuel type | coal |
| Boiler pressure | 170 psi (1.2 MPa) |
| Cylinders | two inside |
| Cylinder size | 19 × 26 in (480 × 660 mm) |
| Tractive effort | 19,945 lbf (88.72 kN) |
| Class | 3P2F |
The Great Northern Railway (GNR) Class N2 is an 0-6-2T side tank steam locomotive designed by Nigel Gresley and introduced in 1920. Further batches were built by the London and North Eastern Railway from 1925. They had superheaters and piston valves driven by Stephenson valve gear.
Some locomotives were fitted with condensing apparatus for working on the Metropolitan line between King's Cross and Moorgate.
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[edit] In service
The N2s were designed for suburban passenger operations, and worked most of the duties out of King's Cross and Moorgate, often hauling one or two quad-art sets of articulated suburban coaches. These ran to places such as New Barnet and Gordon Hill on the Hertford loop. They also hauled some empty coaching stock trains between King's Cross and Ferme Park carriage sidings.
[edit] Sub-classes
- Class N2/1 Introduced 1920, GNR locos with condensing apparatus
- Class N2/2 Introduced 1925, LNER locos with condensing apparatus
- Class N2/3 Introduced 1925, LNER locos without condensing apparatus
- Class N2/4 Introduced 1928, LNER locos with condensing apparatus
British Railways numbers were: 69490-69596.
[edit] Preservation
One, No. 4744 (BR No. 69523) survives to preservation on the Great Central Railway.
[edit] In fiction
- No. 4744 appeared in the film The Railway Children as the locomotive hauling the "Scots Flyer". It was painted in fictional Great Northern and Southern Railway livery like the Pannier Tank no. 5775.
[edit] Sources
- Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, page 54.
[edit] External links
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