GCR Class 9F

GCR Classes 9C, 9F & 9O
LNER Class N5[1]

N5/2 0-6-2T No. 69258 at Peterborough North, 16 August 1958
Type and origin
Power type Steam
Designer Thomas Parker
Builder
Build date 1891–1901
Total produced 131
Rebuild date 1915 (one only as class 9O)
Specifications
Configuration 0-6-2T
UIC class C1 n2t
Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia. 5 ft 1 in (1.549 m)
Trailing dia. 3 ft 6 in (1.067 m)
Wheelbase 22 ft 6 in (6.86 m)
Length 38 ft 8 1⁄8 in (11.79 m) over buffers
Axle load
  • 9C/9F: 17.00 long tons (17.27 t; 19.04 short tons)
  • 9O: 18.50 long tons (18.80 t; 20.72 short tons)
Adhesive weight 48.98–54.25 long tons (49.77–55.12 t; 54.86–60.76 short tons)
Loco weight 62.70–66 long tons (63.71–67.06 t; 70.22–73.92 short tons)
Fuel type Coal
Fuel capacity
  • 9C/9F: 3.00 long tons (3.05 t; 3.36 short tons)
  • 9O: 3.80 long tons (3.86 t; 4.26 short tons)
Water cap
  • 9C/9F: 1,360 imp gal (6,200 l; 1,630 US gal)
  • 9O: 1,840 imp gal (8,400 l; 2,210 US gal)
Firebox:
 • Firegrate area		 18.3 sq ft (1.70 m2)
Boiler LNER diagram 21
Boiler pressure 160 lbf/in2 (1.10 MPa)
Heating surface:
 • Firebox		 99 sq ft (9.2 m2)
Cylinders Two, inside
Cylinder size 18 in × 26 in (457 mm × 660 mm)
Valve gear Stephenson
Valve type Slide valves
Performance figures
Tractive effort
  • 9C/9F: 18,780 lbf (83.54 kN)
  • 9O: (19,840 lbf (88.25 kN)
Career
Operators
Class
  • GCR: 9F
  • LNER: N5
Power class
  • LNER: 2
  • BR: 2MT
Axle load class LNER/BR: Route availability 4
Withdrawn 1936–1961
Disposition All scrapped

The Great Central Railway (GCR) Class 9F was a class of 0-6-2T steam locomotive built between 1891 and 1901. From 1923 the locomotives were redesignated Class N5.

Design and construction

Designed by Thomas Parker for the Manchester, Sheffield and Lincolnshire Railway (MS&LR), the prototype 9F was built in 1891. A total of 12 batches were constructed up to 1901, with 131 locos being completed.[2] The MS&LR changed its name to the GCR in 1897. The GCR 9F locos were reclassified as N5 under the LNER locomotive numbering and classification system when the GCR was absorbed into the London & North Eastern Railway after the 1923 grouping. It was the first design for a British railway to use the Belpaire firebox.

Operation and use

Parker GCR 9F (later N5) 0-6-2T loco 69263, built in 1892, at Langwith Junction engine shed on 7 August 1960. This was one of the last N5 locos to remain operational.

The 9F, later N5, locos were utilised for a variety of purposes including goods shunting, short goods train trips and local passenger train duties. Some locos acted as station pilots at larger termini.

The N5 class was widely spread over the ex-GCR rail system and elsewhere. During July 1952, there were N5s based at Neasden (London), Immingham, Lincoln, Darnall (Sheffield), Gorton (Manchester), and Northwich, Chester and Wrexham, plus several other loco depots.

Locomotive numbering

The GCR locos had 5000 added to their original numbers when the line was absorbed by the LNER in 1923, resulting in numbers ranging between 5021 and 5946. As part of the LNER's numbering rationalisation scheme introduced in 1946, the surviving 121 N5s were renumbered between 9250 and 9370[3] with the earliest built receiving the lowest number, and so on. British Railways, formed on 1 January 1948, added 60000 to all LNER loco numbers.

Withdrawal and scrapping

All 131 9F locos survived to be absorbed by the LNER in 1923. 121 N5 locos remained in service at the creation of British Railways in 1948. 117 survived at 24 April 1954, reducing to 46 at 8 March 1958 as diesel-electric shunters were delivered. The last N5 was withdrawn for scrapping in 1961.[4]

References

Notes
  1. ↑ Boddy et al. 1977, pp. 86, 89, 94–96.
  2. ↑ Casserley & Johnston 1974, p. 74
  3. ↑ Allan 1947, pp. 47–48
  4. ↑ Casserley & Johnston 1974, p. 74
Bibliography
  • Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Hoole, Ken; Manners, F.; Neve, E.; Platt, E. N. T.; Proud, P.; Yeadon, W. B. (March 1977). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 9A: Tank Engines—Classes L1 to N19. Kenilworth: RCTS. ISBN 0-901115-40-1. 
  • Casserley, H.C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 2: London & North Eastern Railway. Shepperton, Surrey: Ian Allan Limited. ISBN 0-7110-0553-2. 
  • Allan, Ian (1947). ABC of LNER Locomotives 1947. Ian Allan Ltd. 
Wikimedia Commons has media related to GCR Class 9F / LNER Class N5.
This article is issued from Wikipedia - version of the 10/3/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.