Loxodromic navigation
Rhumb line navigation path: β = constant
Loxodromic navigation (from Greek λοξóς, oblique, and δρóμος, path) is a method of navigation by following a rhumb line, a curve on the surface of the Earth that follows the same angle at the intersection with each meridian. This serves to maintain a steady course in sailing.[1]
Navigating on a spherical surface with a fixed course ( in the figure) results in a spiral path that approaches the North Pole for courses ranging from 270º to 090º and the South Pole for courses from 090º to 270º. On a nautical chart plotted according to the Mercator projection, a loxodromic course appears as a straight line.
Comparison Chart
Comparison, of orthodromic course (white) compared with a loxodromic course (red).
See also
- Great circle navigation.
- Windrose network.
- Map
- Portolan map
- Marine sandglass
- Compass rose
- Isoazimuthal
References
- ↑ Adam Weintrit; Tomasz Neumann (7 June 2011). Methods and Algorithms in Navigation: Marine Navigation and Safety of Sea Transportation. CRC Press. pp. 139–. ISBN 978-0-415-69114-7.
External links
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