rhumb
Noun: 1. A line of constant compass direction: A rhumb line is a path on the surface of the Earth (or a sphere) that crosses all meridians of longitude at the same angle. It represents the course followed by a ship or aircraft that maintains a single, unchanging compass bearing.
The term "rhumb" is almost exclusively used in the compound form "rhumb line" within the specialized contexts of navigation, cartography, and geometry. * In navigation, following a rhumb line is simpler for planning and steering than following a great circle, as it requires no constant change of course. * On a Mercator projection map, a rhumb line appears as a straight line, which is why this map projection is particularly useful for marine navigation.
- Noun:
- The navigator plotted a rhumb line from Lisbon to the Caribbean.
- Sailing a constant rhumb requires less frequent adjustment of the helm.
- On this chart, our intended course is represented by a straight rhumb line.
- Rhumb sailing: The practice of navigating along a rhumb line.
- The concept is contrasted with great-circle navigation, where the shortest path between two points on a sphere is followed, requiring a continuously changing course.
- Rhumb line (n): The full and most common term for the concept.
- Loxodrome (n): A technical synonym used in mathematics and cartography for a rhumb line.
- Rhumb-line (adj): Used attributively, e.g., .
- Loxodrome (technical)
- Constant-bearing course
- Great circle: The shortest path between two points on a sphere, which appears as an arc on a Mercator projection.
- Orthodrome: Another term for a great circle route.
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a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction
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