What elements does the Seaman's Eye rely on?

What elements does the Seaman's Eye rely on?

• A. Local knowledge, territorial landmarks, and depth contours
• B. Electronic charts, radar, and AIS
• C. Tidal streams and currents only
• D. Modern GPS and GLONASS

Answer: (C)

Seaman's Eye is about reading how the water itself moves to judge where you are and where you’ll go. The key factors are tidal streams and currents because they directly push the vessel and change your speed over ground. By understanding the direction and strength of these currents at a given time and depth, you can estimate drift, plan a course that compensates for that movement, and time your approach to avoid hazards or reach a waypoint. This reliance on natural water movement differentiates it from using charts, radar, AIS, or satellite nav, which are tools; the Seaman's Eye focuses on the live, dynamic flow of the sea to navigate.

Seaman's Eye is about reading how the water itself moves to judge where you are and where you’ll go. The key factors are tidal streams and currents because they directly push the vessel and change your speed over ground. By understanding the direction and strength of these currents at a given time and depth, you can estimate drift, plan a course that compensates for that movement, and time your approach to avoid hazards or reach a waypoint. This reliance on natural water movement differentiates it from using charts, radar, AIS, or satellite nav, which are tools; the Seaman's Eye focuses on the live, dynamic flow of the sea to navigate.