SOR NB12 is a fully low-floor single-decker bus produced by the Czech bus manufacturer SOR since 2008. In many towns they currently replace Karosa B 731, Karosa B 732 and Karosa B 931.

SOR NB 12
SOR NB12 made in the year 2009, operated by Prague transport company
Overview
ManufacturerSOR
Body and chassis
Doors4, 3 or 2
Floor typeFully low-floor
Powertrain
EngineIveco Tector F4AE3682E Euro V
Capacity36 seated, 80 standing
116 passengers
Power output194 kW (260 hp)
TransmissionZF 6-speed automatic
Allison 6-speed automatic
Dimensions
Length12,180 mm (479.5 in)
Width2,550 mm (100.4 in)
Height2,900 mm (114.2 in)
Curb weight9,700 kg (21,400 lb)
Chronology
SuccessorSOR NS 12

Construction features

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SOR NB12 is derived from SOR NB 18 articulated single-decker bus. Engine and automatic transmission are located in the left rear corner of the bus. Inside are used plastic Ster seats. Rear axle is VOITH brand and the front axle is[clarification needed] own production with independent wheel suspension. Only rear axle is propulsed. Body of the vehicle is welded from steel-voltage profiles, flashings from the outside and interior are lined with plastic sheeting. The floor of the bus is at a height of 360 mm above the ground. On the right side of the bus are four doors (first are narrower than other doors).

In Czech Republic are also produced trolleybuses SOR TNB 12 and Škoda 30Tr SOR in Škoda Transportation, which are based on SOR NB 12 bodies.

Production and operation

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In 2006 SOR introduced in Brno on Autotec a completely new range of low-floor buses. Standard bus NB 12 and articulated NB 18 were presented with their prototype after the prototypes has done both test drive through cities in Czech Republic and Slovakia. The second bus type NB 18 was introduced at Autotec 2008 and from first prototype it differs with modified design. Serial production began in the fall of 2008.

 
First prototype
 
Trolleybus SOR TNB 12 in Brno, Czech Republic

See also

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