NER 1001 Class

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NER 1001 Class
Hugh llewelyn 1275 (6683840209).jpg
Specifications
Power type Steam
Builder NER Darlington and Shildon
Build date 1852-1875
Total produced 192
Configuration 0-6-0
Driver diameter 5 ft 0 12 in (1.537 m)
Wheelbase 11 ft 10 in (3.61 m) locomotive
11 ft 0 in (3.35 m) tender
36 ft 2 in (11.02 m) total
Axle load 14.1 long tons (14.3 t)
Locomotive weight 35.2 long tons (35.8 t)
Tender weight 22.1 long tons (22.5 t)
Locomotive and tender
combined weight
57.3 long tons (58.2 t)
Boiler 4 ft 3 in (1.30 m) diameter
Boiler pressure 140 psi (0.97 MPa)
Firegrate area 13.3 sq ft (1.24 m2)
Heating surface:
– Tubes
1,229.25 sq ft (114.201 m2)
– Firebox 92.5 sq ft (8.59 m2)
– Total 1,321.75 sq ft (122.795 m2)
Cylinders 2 (inside)
Cylinder size 17 in × 26 in (430 mm × 660 mm)
Valve gear Stephenson
Tractive effort 14,750 lbf (65.6 kN)
Career
Operator(s) North Eastern Railway
London & North Eastern Railway
Retired all retired by 1923
Disposition 1 preserved (No. 1275), remainder scrapped

The North Eastern Railway (NER) 1001 Class was a class of "long-boiler" 0-6-0 steam locomotive designed in Britain by William Bouch.

Technical data[edit]

A NER 1001 class locomotive weighed about 35 tons, with a wheelbase of 11 ft 10 in (3.61 m) and 5 ft 0.5 in (1.537 m) diameter driven wheels. Its 4 ft 3 in (1.30 m) diameter boiler produced over 7 tons of tractive effort at 140 psi.

History[edit]

The "long boiler" design dated back to a Stephenson design of 1842. At that time there was a controversy about keeping the centre of gravity low. Another point of view was espoused by John Gray who set out to improve efficiency and increase the pressure in shorter boilers using single drivers instead of coupled wheels. His ideas led to the design of the highly successful Jenny Lind locomotive.

The long boiler design with coupled wheels continued for slower heavier work. A total of 192 NER 1001 class locomotives were built from 1852 by a number of private manufacturers, as well as the NER's own works at Darlington and Shildon.

The small size of the firebox would seem remarkable in later years, but the engines were ideal where trains might spend long periods standing, waiting for a path, or when shunting. A minimum amount of fuel would have delivered sufficient heat to the large boiler to start heavy loads.

The last ten NER 1001's were delivered in 1875. Many were rebuilt in the following twenty five years. The last was withdrawn in 1923.

Having travelled an official mileage of 908,984 miles (1,462,868 km), locomotive number 1275 is preserved at the National Railway Museum in York.

Accidents and incidents[edit]

  • On 5 November 1900, locomotive No. 1245 was hauling a freight train when it ran away and was derailed by trap points at Lingdale Junction, Yorkshire.[1]
  • On 8 August 1909, a locomotive of the class was hauling a freight train which was derailed at Hartley, Cumberland due to heat buckled track.[2]

References[edit]

  1. ^ Hoole, Ken (1982). Trains in Trouble: Vol. 3. Redruth: Atlantic Books. p. 12. ISBN 0-906899-05-2. 
  2. ^ Earnshaw, Alan (1989). Trains in Trouble: Vol. 5. Penryn: Atlantic Books. pp. 10–11. ISBN 0-906899-35-4. 

External links[edit]