The ALCO Century 855 was a model of 5,500 hp diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific. The locomotive was notable for being ALCO's most powerfu
Union Pacific 60B, the only Century 855B built
A B-unit, in railroad terminology, is a locomotive unit which does not have a control cab or crew compartment and therefore must be operated in tandem with another coupled locomotive with a cab. The t
BNSF GP60B #346, a rare example of a B-unit of a hood-styled locomotive still in service as of 2016
B-unit of the Russian 3TE10MK diesel locomotive with a cab-styled body
Russian OPE1A [ru; uk] industrial electro-diesel locomotive for quarry railways with primary electric locomotive and two diesel-electric B units
B-unit converted from an EMD F9AM locomotive. The cabin shape was preserved, but its windows were blanked out and the front door was added.