SJ T44

T44
Specifications
Power type	Diesel-electric
Builder	NOHAB and KVAB
Build date	1968–87
UIC classification	Bo'Bo'
Gauge	1,435 mm (4 ft 8 1⁄2 in)
Wheel diameter	1,030 mm (41 in)
Length	15,400 mm (50 ft 6 in)
Locomotive weight	76 t (74.8 long tons; 83.8 short tons) tare weight
Engine type	General Motors 12-645E
Cylinders	V12
Cylinder size	127 L (28 imp gal; 34 US gal)
Transmission	Electric
Top speed	100 km/h (62 mph)
Power output	1,235 kW (1,656 hp)
Tractive effort	220 kN (49,000 lbf)
Career
Railroad(s)	Statens Järnvägar
Number in class	123
Number	259–283, 314–323, 329–416
Disposition	in service

T44 is a Swedish diesel-electric locomotive built by Nyquist & Holm (NOHAB) and Kalmar Verkstad (KVAB) in 123 units between 1968 and 1987. It was the successor of T43, and used both for hauling and shunting. It is the most common diesel locomotive in Sweden, with state-owned Green Cargo as the largest operator. Other operators include Israel Railways, Malmtrafik (two) and formerly Norwegian State Railways (one, designated NSB Di 7).

History

Though mainly used for shunting and freight hauling, T44 has occasionally been used to haul passenger trains. In the 1970s it was used on the unelectrified line Borlänge-Mora, and in 1990s on the Inland Line. Compared to the predecessor T43, T44 is more powerful and has a modernized drivers cab, with better noise insulation, though there are many similarities between the models. In appearance the T44 is somewhat more square than the predecessors. Up to three T44s can run multiply.

In 1993, SJ T44 276 was sold to the NSB for use as a shunter on the Ofoten Line, and given the designation NSB Di 7, and numbered 634. This engine was transferred, along with SJ T44 283, to Malmtrafik in 1996. When the Swedish State Railways was split in 2001, Green Cargo took over all the T44 locomotives, though four were sold to the Swedish railway company TGOJ (now a subsidiary of Green Cargo). In 2007, Green Cargo has ordered a full renovation of 100 units from Bombardier Transportation which included new four-stroke engines from MTU (type 12V 4000 R43).^[1] The renovation is expected to extend the life-time with 15–20 years.^[2] The first rebuilt units was delivered in 2009 and is called Td

Gallery

• 

  The only T44 at the service of Israel Railways

• 

  Green Cargo Td in Boden, Sweden

References

1. ↑ MTU repowers Green Cargo T44 locos www.mtu-online.com
2. ↑ Pressmeddelande från Green Cargo www.greencargo.com

External links

Wikimedia Commons has media related to SJ T44.

• Järnväg.net entry on T44 (Swedish)
• Norsk Jernbaneklubb entry on Di 7 (Norwegian)
• Jernbane.net entry on Di 7 (Norwegian)