Calculate true wind direction and speed for sailing. Input vessel speed, apparent wind, and angle to determine accurate wind data.




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Calculate true wind direction and speed for sailing. Input vessel speed, apparent wind, and angle to determine accurate wind data.






This navigation app provides tools for maritime professionals and sailing enthusiasts. It offers features like true wind calculation, celestial navigation, ETA estimation, logbook management, and port search. Stay informed with real-time NavArea warnings for safer voyages.






This app provides tools for celestial navigation, offering computations for celestial bodies and sight reductions. It includes an offline perpetual almanac and allows for quick capture of observation data for accurate course adjustments.


This app provides comprehensive tools for marine navigation, including real-time ship movement, route planning, and advanced sailing calculations. It also offers features for collision avoidance, maneuvering, and learning maritime regulations and signaling.


This app assists with celestial navigation training by providing a perpetual almanac, star finder chart with animation, and tools for calculating lines of position and meridian passages. It can utilize device sensors for real-time chart positioning, though a marine sextant is still required for actual navigation.








Easily convert and display MGRS, UTM, and lat-lon coordinates on a map, even without a signal. This app is designed for quick grid-to-map conversion and navigation, with features like offline maps and a night mode.