Nautical Calculator is an Android application that calculates rhumb line and great circle navigation.
The application is totally free.
The main functions are:
- Given two coordinates, great circle and rhumb line courses, distances, great circle vertex and meridional parts is calculated, is show graphics.
- Given a position, new position is determined by advancing it for courses and distances.
- Wheel Over calculation
- Compass detections
- Draft survey
- Converter
- Utility


other features can be enabled.
- Calculate Average speed
- E.T.A. calculation
- Route plan, for manual waypoints planning
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Opposite course rendez vous
- Route correction
- Calculate Amplitude at sunset and sunrise
- Compass Error
- Solves Drift problem
- Solves Tides problem
- Solves Tidal current problem
- Wind calculation with Beaufort classification
- ABC Tables (azimuth, initial course, right ascension with unknow star)
- Nautical almanac
- Celestial Navigation with position line
- Meridian transit
- Celestial observation
- Coastal navigation

In routes feature there is a world map: it isn't a nautical chart and is not for use as a saling chart, but as a simple general means of showing the courses through the water on earth, this map isn't for navigational purposes.
No need connection for show the map; the map will be downloaded only one time.
The map, for size limit, will be show for scale over 60-70 Nm.


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