What does the Navigational Height refer to for the vessel?

Navigational Height refers to the maximum vertical distance from the waterline to the highest point of the vessel that is relevant for navigation purposes. This measurement is crucial for ensuring that the vessel can safely pass under bridges, overhead structures, and other obstacles without risking collision or damage.

In the context of the Fast Response Cutter, the correct value of 70 feet indicates the height of the vessel at its tallest point, such as the mast or antennas. This information is vital for planning routes through areas with vertical clearance restrictions, allowing the crew to avoid hazards and safely navigate waterways.

Understanding the correct navigational height helps the deck watch officer to properly assess the vessel's capabilities, plan for docking and mooring, and communicate effectively with other vessels and traffic control when traversing congested waterways or navigating low-clearance areas. This ensures not just the safe operation of the vessel but also compliance with maritime regulations and standards.