2-6-6-6

noun

Under the Whyte notation system, an articulated locomotive with two leading wheels on a leading truck, two sets of six driving wheels, and six trailing wheels on a trailing truck. This arrangement was used only on the C&O which called it the Allegheny and the Virginian, which named it the Blue Ridge.

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Meanings

noun2-6-6-6 (plural 2-6-6-6s)

plural 2-6-6-6s

  1. Under the Whyte notation system, an articulated locomotive with two leading wheels on a leading truck, two sets of six driving wheels, and six trailing wheels on a trailing truck. This arrangement was used only on the C&O which called it the Allegheny and the Virginian, which named it the Blue Ridge.
Cite this entry
APA

2-6-6-6. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/2-6-6-6

MLA

“2-6-6-6.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/2-6-6-6. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “2-6-6-6,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/2-6-6-6.

Source: 2-6-6-6 on Wiktionary, CC BY-SA 4.0.