Valmet Nr II

Nr II
An MLNRV II class tram (Nr II refitted with low-floor midsection) at Hakaniemi, Helsinki
In service	1983–present
Manufacturer	Valmet
Built at	Valmet airplane factory, Tampere
Constructed	1983–87
Entered service	1983
Refurbished	1996–2005 2006-2011 (addition of low-floor middle section)
Number built	42
Number in service	42
Fleet numbers	71–112
Capacity	39 seats, 100 standing (original) 49 seats, 120 standing (low-floor)
Operators	Helsinki City Transport (HKL)
Lines served	All HKL tram lines
Specifications
Car length	20 m (65 ft 7+3⁄8 in) original construction 26.50 m (86 ft 11+1⁄4 in) with low-floor midsection
Width	2.3 m (7 ft 6+1⁄2 in)
Height	3.7 m (12 ft 1+5⁄8 in) with pantograph down
Floor height	0.91 m (2 ft 11+7⁄8 in) 0.39 m (1 ft 3+3⁄8 in) low-floor section
Maximum speed	60 km/h (37 mph)
Weight	27.2 t (26.8 long tons; 30.0 short tons) (original) 33.5 t (33.0 long tons; 36.9 short tons) (low-floor)
Traction system	Electric
Traction motors	2 × Strömberg GHCU / H6232
Power output	2 × 130 kW (original) 2 × 156 kW (low-floor)
Electric system(s)	600 V DC overhead lines
Current collector(s)	Pantograph
Braking system(s)	Track / disc / electric
Track gauge	1,000 mm (3 ft 3+3⁄8 in) metre gauge

Nr II is a class of articulated six-axle (B′2′B′ wheel arrangement), chopper-driven tram operated by Helsinki City Transport (HKL) on the Helsinki tram network. All trams of this type were built by the Finnish metal industry corporation Valmet between the years 1983 and 1987.^[1][2]

Between 1996 and 2005 all trams in the class were modernised by HKL and redesignated as Nr II+ class.^[1] From 2006-2011, all trams of this class were rebuilt with a low-floor midsection and redesignated as MLNRV II.^[3][4][5]