NSB Class 69

NSB Class 69
BM69639 (C-series) arriving at Oslo Central Station.
In service	1971 – present
Manufacturer	Strømmen
Refurbishment	2005 (G-series)
Number built	85 units
Formation	2 or 3 cars
Capacity	189 seats (A-series) 282–306 (3 car B-series) 180–204 (2 car B-series) 301 (C-series) 300–303 (D-series) 178 (E-series) 270 (G-series)
Operator	Norges Statsbaner NSB Anbud (G-series)
Line(s) served	Drammen Line Gjøvik Line Østfold Line Hoved Line Voss Line
Specifications
Car length	End cars: 24.85 m (A, B, C) 25.06 m (D, E, G) Centre cars: 24.25 (B) 27 m (C, D, E, G)
Maximum speed	130 km/h (81 mph)
Weight	Motor car: 53.9 t (A-series) 54 t (B-series) 53.5 t (C-series) 60.5 t (D-series) 64 t (E-series) Centre cars: 28.8 t (B-series) 35 t (C-, D-series) 38 t (E-series) Steering cars: 29 t (A-, C-series) 28.5 t (B-series) 35.5 t (D-series) 37 t (E-series)
Electric system(s)	15 kV 16⅔ Hz AC
Current collection method	Overhead wire
Gauge	1,435 mm (4 ft 8 1⁄2 in)

NSB Class 69 (Norwegian: NSB type 69) is an electric multiple unit used by Norges Statsbaner for a variety of commuter trains on the Norwegian railway system, as well as a few medium distance and branch line trains. It is the most common type of trainset in Norway, although the newer NSB BM72 has also been introduced. All the trains were built by Strømmen.

History

During the 1960s NSB realized that they would need a new generation of electric multiple units for local traffic. Both the Class 65, 67 and 68 had for thirty years been built with slight modifications, and NSB needed both new and more modern trains for their operations. Among the inspiration was the successful X1 units used in Sweden. NSB decided on a number of rationalizations, first of all a new interior so that two new cars could hold the same capacity as three units from the older models. Secondly NSB wanted quicker trains, and increased the maximum speed from 70 to 130 km/h (81 mph). This increase in speed was sufficient to reduce the number of trains for a given frequency by a third. For instance on the line from Oslo Ø to Ski this allowed NSB to reduce the number of operative car from nine to four. The 69-set was also given new thyristor engines with 1,200 kW, a lot more than the old units.

BM69078 (D-series) with the new design at Lørenskog Station

The first units were delivered on 1 November 1970, and the first series fifteen units (A-series) was put into service from Oslo Ø to Lillestrøm and Ski. The B-series was delivered a few years later, and used for longer lines, soon followed by more C-series units. The D-series was delivered in the 1980s and custom made for longer distances. The last series was delivered in 1993 as part of the stock for the 1994 Winter Olympics. All the original units consisted of twin-car sets, but from 1987 NSB ordered additional middle cars, to make three-car units. This allowed somewhat more flexibility, and NSB kept the A- and B-series as twin-cars so they could combine trains to make any number of cars needed between two and nine. The second two batches of D-series trains delivered in 1990 and 1993 were delivered with three cars.

Not until 1982 were the 69-units put into service outside the Oslo area. At first they were tried out on Flåm Line, then in 1984 on the Bergen Commuter Rail. From 1991 they were also used on the Stavanger Commuter Rail.

The E- and G-series are rebuilt sets, with higher comfort levels, the former in 1994 for Sørland Line between Kristiansand and Stavanger, the latter on Gjøvik Line in 2005.

On 14 December 1999 NSB introduced wrap advertising for Freia Melkesjokolade on three of the trains, but chose to discontinue outside advertisements after a while.^[1]

Lines serviced

The BM69 trainsets are in use between Kongsberg–Eidsvoll, Spikkestad–Moss, Drammen–Dal, (Drammen)–Asker–Lillestrøm, (Skøyen)–Oslo S–Gjøvik, Skøyen–Ski, Skøyen–Mysen, and Skøyen–Årnes.

Versions

Commuter disembarking a 69 car.

Interior of the D-series.

The BM69 comes in six series:

• The BM69A was the original BM69, built between 1970 to 1971. They consist of two carriages. 15 of these train sets were built and 12 remain in service.
• The BM69B is the second series, built in 1974. Most of the 17 BM69B sets built consist of two carriages, but two of them had a middle carriage added. Some of the B-series trains were rebuilt with a large cargo hold, making them suitable for somewhat longer journeys such as Bergen–Myrdal where skis and bicycles are often brought along. The B-series has only one door on each side of the carriage, rather than two. This allows for extra seating, although it slows the embarkment and disembarkment.
• The BM69C series was built in 1975. They consist of three carriages. The 14 train sets operate commuter trains like the BM69D series.
• The BM69D series were built between 1983 and 1990. They are distinguishable from the BM69C series by the redesigned ends of the train. 39 of these trains were built and 35 remain in service as of 2005.
• The BM69E series are redesigned BM69D trains for use on somewhat longer stretches, for instance, the usual five abreast seating is replaced with four abreast seating. They have been used on the Gjøvik Line and Jæren Line, but now operate on the line between Bergen and Voss.
• The BM69G series are another version of redesigned BM69D train sets. They are equipped with several amenities such as food and drink vending machines and more comfortable seating including a first class section. The nine G-series trains were rebuilt in Denmark and operate on Gjøvikbanen.

Specifications

• Weight: 53.5-64 tons
• Power: 1632 hp
• Axle configuration
  • Bo'Bo'+2'2' (2 cars)
  • Bo'Bo'+2'2'+2'2' (3 cars)
• Maximum speed: 130 km/h

Accidents

• On 20 June 1986, 69.054 burnt up at Lodalen.
• On 26 October 1988, 69.668 collided with El 16.2205 and was later demolished.
• On 16 April 1990, two 69-sets collided at Lysaker, and 69.009 and 69.628 were taken out of service.
• In 1991 and 1992, 69.014 and 69.019, respectively, burnt up.
• After the Nordstrand accident in 1993, 69.068 was retired.^[1]

External links

• Jernbane.net entry on the BM69
• NSB fleet details
• BM69 images
• NSB press release on the BM69G series (Article in Norwegian)

References

1. ^ ^{a b} Aspenberg, Nils Carl (2001) (in Norway). Elektrolok i Norge. Oslo: Baneforlaget. ISBN 82-91448-42-6.