GNR Class O2
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 63956 out of use on no.7 road, Annesley MPD. May 1964. She was waiting to go to Rigley's Wagon Works for breaking, having been withdrawn from Grantham (34F) in September 1963 |
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| Power type | Steam |
|---|---|
| Designer | Nigel Gresley |
| Builder | GNR and LNER |
| Build date | 1921-1943 |
| Configuration | 2-8-0 |
| Gauge | 4' 8½" |
| Driver size | 4' 8" |
| Locomotive weight | Engine: 74 tons 2 cwt to 78 tons 13 cwt Tender: 43 tons 2 cwt to 52 tons 0 cwt |
| Fuel type | coal |
| Boiler pressure | 180 psi |
| Cylinders | 3 |
| Cylinder size | 18½" x 26" |
| Tractive effort | 36,740 lbf |
| Class | 8F |
The Great Northern Railway (GNR) Class O2 was a class of three-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for freight work and built by the GNR from 1921. Further examples were built by the London and North Eastern Railway (LNER) from 1924.
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[edit] Sub-classes
The LNER created four sub-classes: [1]
- O2/1, Introduced 1921. Development of experimental Gresley GNR 3-cylinder locomotive (LNER 3921). Subsequently rebuilt with side-window cab and reduced boiler mountings.
- O2/2, Introduced 1924. Development of O2/1 with detail differences.
- O2/3, Introduced 1932. Development of O2/2 with side-window cab and reduced boiler mountings.
- O2/4, Introduced 1943. Rebuilt with 100A (B1 type) boiler and smokebox extended backwards.
[edit] British Railways
The locomotives passed to British Railways (BR) in 1948 and were given BR Numbers 63922-63987.
[edit] References
- ^ Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, pp 37-38
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[edit] External links
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