Sailing is a method of solving the various problems involving course distance difference of latitude difference of longitude and departure.

The app plots on a Google map the route between a departure and a destination point using the following sailings:
- Rhumb line (loxodromic).
- Great Circle (orthodromic).
And calculates:
- Course & distance.
- Waypoints of the great circle route.
- Save between Rhumb line and Great Circle route.
- Nodes and vertices of the Great Circle.

It also plots the entire Great Circle.

OPERATION
1 - Long click 1: adds the departure point
2 - Long click 2: adds the destination point and plots RL & GC
3 - Tap the Mark to see the information
4- [Output]
- GC course C and distance D
- Save between RL & GC
- Waypoints of the GC route
- Vertices and nodes of the GC

WARNING not for live navigation. Sailings App is a useful calculator for navigation.

User interface:
- Zoom buttons +/-
- Map types: normal terrain and satellite
- GPS location. ("Location" App permission must be allowed. Switch on you GPS and then automatic location detection is possible).

See App help for more details.