British Rail Class ES1

British Rail Class ES1 was a class of two electric locomotives commissioned by the North Eastern Railway in 1902. They were of steeplecab design.

North Eastern Railways Class ES1
NER No.1, Locomotion museum, Shildon
Type and origin
Power typeElectric
BuilderBritish Thomson-Houston, with mechanical parts sub-contracted to Brush, for North Eastern Railway
Build date1903-1904 (contract signed with builders on 15 December 1902)
Total produced2
Specifications
Configuration:
​
 • WhyteBo+Bo
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Wheel diameter3 ft 0 in (0.914 m)
Wheelbase27 ft 0 in (8.230 m)
Length37 ft 11 in (11.557 m)
Heightwith pantograph lowered 12 ft 11 in (3.937 m); raised 15 ft 9 in (4.801 m)
Loco weight56 tons (51 tonnes)
Electric system/s600–630 V DC
Current pickup(s)Third rail or pantograph
Traction motorsBritish Thomson-Houston, 4 off
Train heatingNone
Performance figures
Top speed27 mph (43 km/h)
Power output640 hp (477 kW)
Tractive effort25,000 lbf (111.2 kN)
Career
Railroad(s)North Eastern Railway
London and North Eastern Railway
British Railways
NumberNER: 1–2
LNER 1–2, later 6480–6481
BR: 26500–26501
Axle load classRoute availability 2
First run1905
Retired1964
DispositionNo.1 preserved, No.2 scrapped in 1966


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