Which of the following data layer categories is NOT displayed on ECDIS?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Ship hydrodynamic information
ECDIS is designed to display navigational and hydrographic information essential for safe passage. Ship hydrodynamic information, such as squat, turning circles, or engine performance data, is not part of the standardized ENC data layers defined by IMO performance standards for ECDIS, which focus on chart-related safety and situational awareness.
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