NSB El 9

El 9
El 9.2063 is preserved at Flåm Station.
Type and origin
Power typeElectric
BuilderNorsk Elektrisk & Brown Boveri
Build date1944
Specifications
Configuration:
 • UICBo'Bo'
Length10.2 m (33 ft 6 in)
Loco weight48 t (47 long tons; 53 short tons)
Electric system/s15 kV 16.7 Hz Catenary
Current pickup(s)Pantograph
Performance figures
Maximum speed60 km/h (37 mph)
Power output712 kW (955 hp)
Tractive effort108 kN (24,000 lbf)
Career
OperatorsNorwegian State Railways
Number in class3
Numbers2062–2064
First run1947
DispositionRetired; two preserved, one scrapped

NSB El 9 is a retired class of three electric locomotives built by Thune for the Norwegian State Railways (NSB), with electrical equipment from Norsk Elektrisk & Brown Boveri (NEBB) and Per Kure. The locomotives were delivered in 1947 after a three-year delay caused by wartime sabotage in response to the German occupation of Norway. They were used nearly exclusively on the Flåm Line and Hardanger Line, two steep branch lines. The units were used on the Flåm Line until 1983, when they were replaced by El 11. They were then used as shunters until being retired in 1988. Two of the locomotives have been preserved.

The class was custom-made for steep hills and slow speeds; it featured a low 48 tonnes (47 long tons; 53 short tons) weight which, with a Bo'Bo' wheel arrangement, allows for a 12-tonne (12-long-ton; 13-short-ton) axle load. This made the locomotives only 10.2 meters (33 ft) long. They had a power output of 712 kilowatts (955 hp), a tractive effort of 108 kilonewtons (24,000 lbf) and a maximum speed of 60 kilometres per hour (37 mph). They were given road numbers 2062 though 2064.