three green

phrase

A confirmation given by the pilots that the landing gear has gone down successfully and has locked.

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Meanings

phrase
  1. aeronauticsA confirmation given by the pilots that the landing gear has gone down successfully and has locked.

Origin

From the green indicator lights on the aircraft panel, one for each wheel or set of wheels.

Full word history & related roots →
Cite this entry
APA

three green. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/three%20green

MLA

“three green.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/three%20green. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “three green,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/three%20green.

Source: three green on Wiktionary, CC BY-SA 4.0.