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{{Infobox locomotive
{{Infobox locomotive
|name= NSB Di 1
|name= NSB Di 1
|powertype= [[Diesel-electric]]
|powertype= [[Diesel-hydraulic]]
|image= NSB Di 1 nr.601.jpg
|image= NSB Di 1 nr.601.jpg
|caption= NSB Di 1 nr. 601 in 1942
|caption= NSB Di 1 no. 601 in 1942
|railroad= [[Norwegian State Railways (1883–1996)|Norwegian State Railways]]
|railroad= [[Norwegian State Railways (1883–1996)|Norwegian State Railways]]
|numinclass= 1
|numinclass= 1
Line 11: Line 11:
|roadnumber= 1 601
|roadnumber= 1 601
|length= {{convert|13.5|m|ftin|abbr=on}}
|length= {{convert|13.5|m|ftin|abbr=on}}
|locoweight= {{convert|82.7|t|abbr=on|lk=on}}
|locoweight= {{convert|82.7|t|abbr=on}}
|poweroutput= {{convert|1472|kW|abbr=on}}
|poweroutput= {{convert|1472|kW|abbr=on}}
|uicclass= [[1'B B'1]]
|uicclass= 1'BB'1
|topspeed= {{convert|100|km/h|abbr=on}}
|topspeed= {{convert|100|km/h|abbr=on}}
|withdrawn= 1959
|withdrawn= 1959
|disposition= scrapped
|disposition= Scrapped
}}
}}


'''NSB Di 1''' was the first [[diesel-electric locomotive]] used by the [[Norwegian State Railways (1883–1996)|Norwegian State Railways]] (NSB). The engine was used on the [[Bergen Line]], [[Dovre Line]], [[Kongsvinger Line]] and [[Gjøvik Line]]. It was designed to operate as one of a pair, and as such it had a [[Control car (rail)|driver's cab]] at only one end.
'''NSB Di 1''' was a class of [[diesel-hydraulic locomotive]]s built by [[Krupp]] for the [[Norwegian State Railways (1883–1996)|Norwegian State Railways]] (NSB). The locomotive had two [[MAN SE|MAN]] [[diesel engine]]s, giving a combined power output of {{convert|1472|kW}} and allowing the {{convert|82.7|t}} vehicle to reach a maximum speed of {{convert|100|km/h|abbr=on}}. It had a 1'BB'1 wheel arrangement and a [[control car (rail)|driver's cab]] at only one end.

Two units were ordered in 1937, but only one locomotive was delivered, in 1942. Numbered 601, it was the first [[diesel locomotive]] used by NSB. As first serving on the [[Bergen Line]], although the locomotive was plagued with technical faults causing it to be out of service for shorter and longer periods. The locomotive was moved to the [[Dovre Line]] from 1952 and finally to the [[Gjøvik Line]] and [[Kongsvinger Line]] from 1957. The locomotive was retired and scrapped in 1959.


==History==
==History==
The Di 1 was the first class of diesel locomotives ordered by the Norwegian State Railways. Krupp had developed the diesel-hydraulic transmission system during the early 1930s, which at the time proved superior to the diesel-electric transmission system. NSB ordered two locomotives in 1937 to test out the new technology. However, the deliveries were delayed and in the end only one locomotive was delivered, in 1942. The locomotive was designed to be operated in pairs, and thus only received a cab at one end. As only one unit was delivered, the locomotive was in need of [[railway turntable|turntables]] to operate. The locomotive was numbered 601, allowing for ample additional steam locomotives to be delivered in the remaining, lower-numbered slots.<ref name=a203>Aspenberg (1999): 203</ref>
In 1937 NSB ordered one pair of diesel-electric locomotives from [[Krupp]] in [[Germany]] with the engines being delivered from [[MAN SE|MAN]] to test. The outbreak of [[World War II]] delayed delivery, and in 1942 only one locomotive arrived in Norway. NSB assigned it the number 1&ensp;601.


[[File:Di 1 at Finse.jpg|thumb|left|Di 1 at [[Finse Station]] in 1942]]
[[File:Di 1 at Finse.jpg|thumb|left|Di 1 at [[Finse Station]] in 1942]]
The locomotive was initially used on the Bergen Line. The advanced designed, combined with lack of suitable competence among NSB's staff and lack of spare parts, resulted in the locomotive seeing little revenue use. After a few years it was taken out of service and did not re-enter use until 1947, when the diesel shortage had diminished. A contributing factor was also the poor workmanship caused by the wartime industry. The locomotive was transferred from Oslo to Bergen District on 20 December 1945 and was used on the Bergen Line. During 1952 the locomotive started being used on the Dovre Line, and it was official transferred to Trondheim District on 20 October.<ref name=a203 />
Probably due to the conditions in German industry at the time, where most of the resources went to the [[Defense industry|military industry]], the locomotive was plagued with faults and was never especially successful. In the 1950s NSB instead ordered the [[NSB Di 2|Di 2]] and [[NSB Di 3|Di 3]] units for dieselisation.

The class was important for NSB to gain insights into operations and technical aspects of diesel operations.<ref>Aspenberg (1999): 205</ref> This resulted in NSB taking delivery of the [[NSB Di 2|Di 2]] class from 1954.<ref>Aspenberg (1999): 204</ref> The units remained the most powerful diesel locomotives used by NSB until the delivery of the [[NSB Di 4|Di 4]] in the 1980s.<ref name=a203 /> On 4 October 1957 the engine returned to Oslo District, this time to be used on the Gjøvik Line,<ref name=a203 /> and to a less extent the Kongsvinger Line. The locomotive was retired on 24 July 1959,<ref name=jernbanenet>{{cite web |url=http://www.jernbane.net/norge/di/di1/index.asp |title=NSB Diesellokomotiv type Di 1 |publisher=Jernbane.net |language=Norwegian |accessdate=14 March 2014}}</ref> and sold to Brødrene London as scrap, and has thus not been preserved.<ref name=a203 />

==Specifications==
The diesel-hydraulic locomotive had a 1'BB'1 wheel arrangement and an overall length of {{convert|13.5|m|ftin|sp=us}}. It was designed to be run i multiple and had a driver's cab in the one end only. The unit had two six-cylinder, [[four stroke]] diesel engines,<ref name=a203 /> the [[MAN SE|MAN]] W6V 30/38, each with a power output of {{convert|736|kW}}, giving a total power output of {{convert|1472|kW}}.<ref name=jernbanenet /> The locomotives weighed {{convert|82.7|t}}, giving a maximum axle load of 15 tonnes.<ref name=a203 /> The locomotives had a maximum speed of {{convert|100|km/h|abbr=on}},<ref name=jernbanenet /> and were during revenue trials on the Bergen Line capable of reaching a maximum {{convert|88|km/h|abbr=on}} and {{convert|62|km/h|abbr=on}} up the steepest hills.<ref name=a203 />


==References==
1&ensp;601 was withdrawn from service and scrapped in 1959.
{{reflist}}


==External links==
==Bibliography==
{{commons category|NSB Di 1}}
{{commons category|NSB Di 1}}
* {{cite book |last=Aspenberg |first=Nils Carl |year=1999 |title=Fra Roa til Bergen: historien om Bergensbanen |publisher=Baneforlaget |location=Oslo |language=Norwegian |isbn=82-91448-28-0 |url=http://www.nb.no/nbsok/nb/3d066733b3b625fd85d54a344d9b4c17}}
*[http://www.jernbane.net/norge/di/di1/index.asp Jernbane.net entry on the Di 1] {{no icon}}


{{NSB stock}}
{{NSB stock}}
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[[Category:Krupp locomotives]]
[[Category:Krupp locomotives]]
[[Category:Railway locomotives introduced in 1942]]
[[Category:Railway locomotives introduced in 1942]]
[[Category:1942 establishments in Norway]]

Revision as of 13:18, 14 March 2014

NSB Di 1
NSB Di 1 no. 601 in 1942
Type and origin
Power typeDiesel-hydraulic
BuilderKrupp
Build date1942
Specifications
Configuration:
​
 • UIC1'BB'1
Length13.5 m (44 ft 3 in)
Loco weight82.7 t (81.4 long tons; 91.2 short tons)
Performance figures
Power output1,472 kW (1,974 hp)
Career
Number in class1
First run1942
DispositionScrapped

NSB Di 1 was a class of diesel-hydraulic locomotives built by Krupp for the Norwegian State Railways (NSB). The locomotive had two MAN diesel engines, giving a combined power output of 1,472 kilowatts (1,974 hp) and allowing the 82.7 tonnes (81.4 long tons; 91.2 short tons) vehicle to reach a maximum speed of 100 km/h (62 mph). It had a 1'BB'1 wheel arrangement and a driver's cab at only one end.

Two units were ordered in 1937, but only one locomotive was delivered, in 1942. Numbered 601, it was the first diesel locomotive used by NSB. As first serving on the Bergen Line, although the locomotive was plagued with technical faults causing it to be out of service for shorter and longer periods. The locomotive was moved to the Dovre Line from 1952 and finally to the Gjøvik Line and Kongsvinger Line from 1957. The locomotive was retired and scrapped in 1959.

History

The Di 1 was the first class of diesel locomotives ordered by the Norwegian State Railways. Krupp had developed the diesel-hydraulic transmission system during the early 1930s, which at the time proved superior to the diesel-electric transmission system. NSB ordered two locomotives in 1937 to test out the new technology. However, the deliveries were delayed and in the end only one locomotive was delivered, in 1942. The locomotive was designed to be operated in pairs, and thus only received a cab at one end. As only one unit was delivered, the locomotive was in need of turntables to operate. The locomotive was numbered 601, allowing for ample additional steam locomotives to be delivered in the remaining, lower-numbered slots.[1]

Di 1 at Finse Station in 1942

The locomotive was initially used on the Bergen Line. The advanced designed, combined with lack of suitable competence among NSB's staff and lack of spare parts, resulted in the locomotive seeing little revenue use. After a few years it was taken out of service and did not re-enter use until 1947, when the diesel shortage had diminished. A contributing factor was also the poor workmanship caused by the wartime industry. The locomotive was transferred from Oslo to Bergen District on 20 December 1945 and was used on the Bergen Line. During 1952 the locomotive started being used on the Dovre Line, and it was official transferred to Trondheim District on 20 October.[1]

The class was important for NSB to gain insights into operations and technical aspects of diesel operations.[2] This resulted in NSB taking delivery of the Di 2 class from 1954.[3] The units remained the most powerful diesel locomotives used by NSB until the delivery of the Di 4 in the 1980s.[1] On 4 October 1957 the engine returned to Oslo District, this time to be used on the Gjøvik Line,[1] and to a less extent the Kongsvinger Line. The locomotive was retired on 24 July 1959,[4] and sold to Brødrene London as scrap, and has thus not been preserved.[1]

Specifications

The diesel-hydraulic locomotive had a 1'BB'1 wheel arrangement and an overall length of 13.5 meters (44 ft 3 in). It was designed to be run i multiple and had a driver's cab in the one end only. The unit had two six-cylinder, four stroke diesel engines,[1] the MAN W6V 30/38, each with a power output of 736 kilowatts (987 hp), giving a total power output of 1,472 kilowatts (1,974 hp).[4] The locomotives weighed 82.7 tonnes (81.4 long tons; 91.2 short tons), giving a maximum axle load of 15 tonnes.[1] The locomotives had a maximum speed of 100 km/h (62 mph),[4] and were during revenue trials on the Bergen Line capable of reaching a maximum 88 km/h (55 mph) and 62 km/h (39 mph) up the steepest hills.[1]

References

  1. ^ a b c d e f g h Aspenberg (1999): 203
  2. ^ Aspenberg (1999): 205
  3. ^ Aspenberg (1999): 204
  4. ^ a b c "NSB Diesellokomotiv type Di 1" (in Norwegian). Jernbane.net. Retrieved 14 March 2014.

Bibliography

Wikimedia Commons has media related to NSB Di 1.
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