What is the primary purpose of CPA and TCPA in radar navigation?

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Multiple Choice

What is the primary purpose of CPA and TCPA in radar navigation?

CPA and TCPA are tools used to judge whether two vessels are on a collision course. Closest Point of Approach is the smallest distance that would occur between your vessel and the target if both keep their current speed and course. Time to Closest Point of Approach tells you how long before that closest point happens. Together they let you predict collision risk and decide on maneuvers to increase separation. They aren’t about wind speed, depth, or identifying friend or foe, which is why the primary purpose is to assess potential collision risk with a target.

CPA and TCPA are tools used to judge whether two vessels are on a collision course. Closest Point of Approach is the smallest distance that would occur between your vessel and the target if both keep their current speed and course. Time to Closest Point of Approach tells you how long before that closest point happens. Together they let you predict collision risk and decide on maneuvers to increase separation. They aren’t about wind speed, depth, or identifying friend or foe, which is why the primary purpose is to assess potential collision risk with a target.

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