Co-Co

English

Noun

Co-Co (plural Co-Cos)

  1. (rail transport) A wheel arrangement for diesel and electric locomotives signifying that a locomotive has six axles, each powered by a motor, on two bogies.
    • 1961 March, “Talking of trains”, in Trains Illustrated, pages 136–137:
      With their high horsepower, the new Bo-Bos, of which six are on order for trial purposes, but which should ultimately number 50, will take over most of the Gotthard passenger workings from the 6,000 h.p. Co-Cos, permitting the latter to take a greater share of the steadily increasing freight workings over this route, the aim being to work 1,200-ton freight trains up the long 1 in 38-40 approaches to the Gotthard tunnel with 6,000 h.p. Co-Cos in pairs.

Alternative forms
  • C-C
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