Plane sailing
From Wikipedia, the free encyclopedia
Plane sailing is an approximate method of navigation over small ranges of latitude and longitude.
Plane sailing is based on the assumption that the meridian through the point of departure, the parallel through the destination, and the course line form a right triangle in a plane, called the "plane sailing triangle".
This is the usual method used to navigate using paper charts and maps.
The expression "plane sailing" has, by analogy, taken on a more general meaning of any activity that is relatively straightforward. However, in modern usage, it is often spelt incorrectly as "plain sailing".
[edit] See also
- Rhumb line
- Traverse sailing
- Parallel sailing
- Mid-latitude sailing
- Mercator Sailing
- Great-circle navigation
