Nautical Nomograph

Nautical Nomograph is a professional marine navigation utility that turns classic nomographs and sea-calculators into fast, touch-friendly tools. It helps skippers, sailors, and maritime students solve time-critical problems without complex formulas or internet access. Core features - Speed, distance, time, and ETA nomographs for quick passage planning - Wind and current vector tools to find course to steer, leeway, drift, and resulting COG/SOG - Fuel burn and range estimators with customizable vessel profiles and units Why it stands out - Built for accuracy and speed during real-world operations - Offline-ready calculators and clean, glare-friendly interface - Flexible units and clear visual outputs for training and professional use Ideal for coastal cruising, offshore passages, race strategy, and maritime training. Keywords: marine navigation app, nautical calculator, route planning, wind and current, passage planning, SOG COG, ETA, fuel consumption

1. Download and open the app, then choose your preferred units and create a vessel profile with typical speed and fuel data. 2. From the Tools screen, select a calculator such as Speed–Distance–Time, ETA, or Wind and Current. 3. Enter the known values, then slide or tap to solve the unknown; results update instantly with clear visual scales. 4. Use the Wind and Current tool to set true wind, set and drift; adjust heading to find the course to steer and predicted COG/SOG. 5. Save frequent setups as templates, pin key calculators to the dashboard, and export results or routes for sharing and recordkeeping.