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Course correction & tidal set — calculators for sailors
From true course to steered course: variation, deviation and tidal set in one traceable flow — no cloud, no subscription.
Course work under time pressure
On the bridge you don't want to hunt through tables or hope for a signal. Course correction and tidal triangle belong in a tool that works offline and stays readable.
In NauticCalc
- ·Course chain rwK ↔ mwK ↔ MgK with stored deviation table
- ·Tidal correction and tidal triangle in the same navigation section
- ·Lee helm correction from Beaufort or knots
- ·GPS position as context — calculation stays local
- ·Documented nautical formulas, not a toy calculator
Calculate without signal
Course correction, variation and tidal set run offline. GPS uses the device — no server.
Precision over marketing
Built for real passages in the DACH TestFlight. Aid — not a certified navigation system.
Frequently asked questions
Yes — all course and tidal calculators run locally. Live data only for optional weather/tides with your own API key.
rwK = true course, mwK = magnetic course, MgK = compass course (magnetic reading on the compass). Course correction links them.
Related topics
Course clear — even without network
On the App Store · One-time purchase
