A position line is a line that can be identified both on a nautical chart or aeronautical chart and by observation out on the surface of the earth. The intersection of two position lines is a fix that is used in position fixing to identify the navigator's location.
There are several types of position line:
- Compass bearing - the angle between north and the line passing through the compass and the point of interest
- Transit - a line passing through the observer and two other reference points
- Leading line - the line passing through two marks indicating a safe channel
- Leading lights - the line passing through two beacons indicating a safe channel
- Sector lights – the lines created by masked coloured lights that indicate a safe channel
Famous quotes containing the words position and/or line:
“They who say that women do not desire the right of suffrage, that they prefer masculine domination to self-government, falsify every page of history, every fact in human experience. It has taken the whole power of the civil and canon law to hold woman in the subordinate position which it is said she willingly accepts.”
—Elizabeth Cady Stanton (1815–1902)
“The individual woman is required ... a thousand times a day to choose either to accept her appointed role and thereby rescue her good disposition out of the wreckage of her self-respect, or else follow an independent line of behavior and rescue her self-respect out of the wreckage of her good disposition.”
—Jeannette Rankin (1880–1973)