GCR Class 9N.html

 
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GCR Class 9N
LNER Class A5
Power type Steam
Designer John G. Robinson
Builder GCR, LNER, Hawthorn Leslie and Company (13)
Serial number HL 3616–3628
Build date 1911–1926
Total production 44
Configuration 4-6-2T
Gauge 4 ft 8½ in (1,435 mm)
Driver size 5 ft 7 in (1.702 m)
Locomotive weight A5/1: 85.90 long tons (87.28 t)
A5/2: 90.55 long tons (92.00 t)
Fuel type Coal
Boiler pressure 180 psi (1.24 MPa)
Cylinders Two, inside
Cylinder size 20 in × 26 in (508 mm × 660 mm)
Tractive effort 23,750 lbf (105.6 kN)
Career Great Central Railway, London & North Eastern Railway, British Railways
Power class BR: 3MT
Axle load class Route Availability 5
Retired 1942–1961
Disposition All scrapped

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.

Contents

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.

Modelling

A 7mm scale kit is available from MSC models 1.

Sources

  • Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, page 55.

References

External links

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