What is the minimum Gross Tonnage that requires a second independent radar system?

The requirement for a second independent radar system being set at a minimum gross tonnage of 10,000 GT is based on international maritime regulations aimed at enhancing safety at sea. This specific threshold is outlined in the International Convention for the Safety of Life at Sea (SOLAS), which mandates that vessels over this tonnage are more likely to encounter various maritime challenges, such as busy shipping lanes and adverse weather conditions, necessitating an additional radar system for improved navigational safety.

A second independent radar system acts as a redundant safety measure that can provide accurate navigation and collision avoidance data crucial for larger vessels. This redundancy ensures that if one system fails, the other can still function, thus maintaining situational awareness crucial for maritime safety.

In contrast, lower gross tonnage thresholds generally place less stringent requirements for radar systems due to the anticipated operational environment and the reduced likelihood of engaging in complex navigation scenarios that larger vessels often face. Therefore, understanding and complying with this requirement is vital for ensuring that vessels over 10,000 GT are equipped to maneuver safely in busy maritime environments.