NauticCalc: Nav Calculator

Polar diagram – realistic ETA under sail • New: add your boat's polar (import .pol/.csv, use a preset or enter it by hand) – arrival times then use your actual speed for the wind and angle instead of one flat figure • No-go warning when the course is too close to the wind, plus a ready beating or gybing plan with tack headings, detour and sailing time – add the turning point to your route with one tap • Name, archive and reload voyage plans instead of overwriting them with the next one New in beta – onboard instruments: • Live values from your boat's network (NMEA 0183, Signal K, NMEA 2000) feed straight into the calculators, logbook and voyage planning: speed through water, course, wind and depth • Requires a gateway on the onboard Wi-Fi. Rolling out gradually after the update Also improved: • Apparent wind now works both ways – including back from measured apparent wind to true wind • Calculators show their result right after launch instead of waiting for your first entry • Magnetic variation: a faulty secondary calculator has been removed, and the values are checked against the official NOAA reference • Course correction: working back with a deviation table now lands exactly on the magnetic heading, and the consistency warning shows up again when heading and corrections don't add up • Tap the active tab to jump back to its overview • Voyage planning: route overview map in the result; the AI explanation no longer cuts off on long voyages • Usage statistics only with your consent – the switch on the start screen is off by default