1Co-Co1

noun

A wheel arrangement for diesel-electric locomotives signifying that a locomotive has eight axles on two bogies, six axles are powered by electric motors, with one outer axle on each bogie unpowered.

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Meanings

noun1Co-Co1 (plural 1Co-Co1s)

plural 1Co-Co1s

  1. rail transportA wheel arrangement for diesel-electric locomotives signifying that a locomotive has eight axles on two bogies, six axles are powered by electric motors, with one outer axle on each bogie unpowered.

    Thus, in the diesel-electric Type 4 range, B.R. have progressed from the early 2,000-2,300 h.p. 1Co-Co1s of 130-140 tons to the latest Brush/Sulzer 2,750 h.p. Co-Co of about 114 tons weight; [...].

    1963 January, G. Freeman Allen, “Why B.R. are dropping high-power diesel-hydraulics”, in Modern Railways, page 25
Cite this entry
APA

1Co-Co1. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/1Co-Co1

MLA

“1Co-Co1.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/1Co-Co1. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “1Co-Co1,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/1Co-Co1.

Source: 1Co-Co1 on Wiktionary, CC BY-SA 4.0.