NSB Di 2

"Di2" redirects here. For Dura-Ace Di2 bicycle components, see Shimano#Road bicycle groupsets.

NSB Di 2
Di2 2842 in Oslo S
Power type	Diesel-hydraulic
Builder	Krupp
Build date	1954–73
UIC classification	C
Length	10 m (32 ft 10 in)
Locomotive weight	45 t (44 long tons; 50 short tons) (MaK); 47.4 t (46.7 long tons; 52.2 short tons) (Thune)
Transmission	Hydraulic
Top speed	50 km/h (31 mph) (shunting); 80 km/h (50 mph) (main line)
Power output	423 kW (567 hp) (MaK); 441 kW (591 hp) (BMV)
Career	Norges Statsbaner
Number in class	54
Number	2 801 — 2 854
First run	1954

NSB Di 2 was a diesel-hydraulic locomotive used by the Norwegian State Railways (NSB). The 54 delivered locomotives had three axles and were used as shunters throughout the entire NSB system.

History

The delivery of the Di 2 stretched between 1954 and 1973 in two series. Series 1 consisted of six units built by MaK in Kiel, Germany in 1954 and 1957 and two units by Thune in Oslo. All the eight first locomotives had a six-cylinder MaK engine producing 423 kilowatts (567 horsepower).

NSB wanted more diesel-powered shunters so Bergen Diesel/Bergen Mekaniske Verksted developed a slightly more powerful diesel engine for the purpose, the type LT 6 producing 441 kilowatts (591 horsepower). Thune started delivery of the Series 2 with BMV engines in 1961 and started delivering a further batch in 1973, in total 46 engines in the second series.

At first the Di 2 engines were painted green, but later when NSB chose to paint its entire fleet red, the Di 2 engines were also converted to red. In the 1980s the Di 2 units were painted the distinct red and yellow shunter colors of NSB. Di 2 854 was in 1997 rebuilt in the Netherlands to Skd 225 with a new Caterpillar engine and driver's cab.

Two engines are today in use for the emergency train for Romeriksporten.

Heritage

Four locomotives have been preserved:

• 2 817 by Bergen Technical Museum
• 2 827 by the Norwegian Railway Association
• 2 833 by the Norwegian Railway Museum
• 2 848 by Setesdalsbanen

Di 2 in popular culture

Two Di 2 units were rebuilt as engines for the Sesame Train that was featured in the children's television show Sesam Stasjon. Another three Di 2 units were featured in the Olsen Gang films.

External links

• Jernbane.net entry on the Di 2 (Norwegian)