Which statement describes Manual Navigation?

• A. Automated position input only
• B. Paper charts required
• C. Utilizes eNav systems with manual positioning input
• D. Radar-guided navigation

Answer: (C)

Manual navigation means the navigator actively inputs position and other data into electronic navigation tools, rather than relying solely on automatic or sensor-fed data. In an eNav setup, you still use electronic charts and the system to display and manage your voyage, but the crucial element is that position fixes, waypoints, and routes are entered or verified by the operator. This manual input allows you to cross-check with multiple aids (radar, bearing, range, or sextant fixes) and to update or correct the vessel’s position as needed, such as when GNSS is unavailable or when precise fixes are required.

So, describing manual navigation as using electronic navigation systems with manual positioning input captures the essence: the system provides the tools, but the navigator supplies the position data. The other statements don’t fit because automated position input implies no manual entry, paper charts imply non-electronic methods, and radar-guided navigation centers on radar as the primary guidance rather than manual position entry into eNav.