GCR Class 9N
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| Power type | Steam |
|---|---|
| Designer | J. G. Robinson |
| Builder | GCR, LNER, Hawthorn Leslie and Company |
| Build date | 1911-1926 |
| Configuration | 4-6-2T |
| Gauge | 4' 8½" |
| Driver size | 5' 7" |
| Locomotive weight | A5/1, 85 tons 18 cwt A5/2, 90 tons 11 cwt |
| Fuel type | coal |
| Boiler pressure | 180 psi |
| Cylinders | two inside |
| Cylinder size | 20" x 26" |
| Tractive effort | 23,750 lbf |
The Great Central Railway Class 9N, classified A5 by the LNER, was a class of 4-6-2 tank locomotives designed by John G. Robinson for suburban passenger services. They were fitted with superheaters, piston valves and Stephenson valve gear.
The GCR built three batches between 1911 and 1917. They ordered a fourth batch but this was not built until after Grouping in 1923. The London and North Eastern Railway {LNER) ordered a fifth batch from Hawthorn Leslie and Company and this was built between 1925 and 1926. The last batch had reduced boiler mountings and detail differences, and was classified A5/2. The earlier batches were then re-classified A5/1.
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[edit] Numbering
Forty-three locomotives passed to British Railways in 1948 and they were numbered as follows:
- A5/1, 69800-69829
- A5/2, 69830-69842
None has been preserved.
[edit] Modelling
A 7mm scale kit is available from MSC models [1].
[edit] Sources
- Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, page 55.
[edit] References
[edit] External links
- http://www.lner.info/locos/A/a5.shtml
- http://www.railuk.co.uk/steam/getsteamclass.php?item=A5/1
- http://www.railuk.co.uk/steam/getsteamclass.php?item=A5/2
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