4-8-6

noun

Under the Whyte notation system, a steam locomotive that has four leading wheels arranged in a leading truck, eight coupled driving wheels and six trailing wheels in a trailing truck. The C&O had one planned as their class J4, but it was never built.

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Meanings

noun4-8-6 (plural 4-8-6s)

plural 4-8-6s

  1. Under the Whyte notation system, a steam locomotive that has four leading wheels arranged in a leading truck, eight coupled driving wheels and six trailing wheels in a trailing truck. The C&O had one planned as their class J4, but it was never built.
Cite this entry
APA

4-8-6. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/4-8-6

MLA

“4-8-6.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/4-8-6. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “4-8-6,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/4-8-6.

Source: 4-8-6 on Wiktionary, CC BY-SA 4.0.