lubber line


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lubber line

also lub·ber's line  (lŭb′ərz)
n.
A line or mark on a compass that is aligned with the central axis of a moving body, especially a ship or aircraft, and represents the heading.

lubber line

n
(Nautical Terms) a mark on a ship's compass that designates the fore-and-aft axis of the vessel. Also called: lubber's line
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lubber line - a fixed line on a ship's compass indicating its heading
point of reference, reference point, reference - an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"
References in periodicals archive ?
The card is viewed through a glass window which forms part of the fluid container and features a vertical line, called a lubber line, against which is compared the compass card.
If you push the course pointer knob, it will center the HSI at top of the lubber line with a TO indication.
In automatic track-up mode, the aircraft symbol and lubber line move to indicate heading and wind correction, while the current ground track is shown at the top of the compass card.