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Navigation & chartwork

What does radar allow in restricted visibility?

Short answer

Better information when used with safe speed, lookout, sound signals, and judgement

Radar provides systematic warning and movement evidence but removes none of the restricted-visibility duties. Revisit Radar in Fog Is Not a Permission Slip.

Sources and scope

Reviewed by Richard Moore on . This answer is scoped to international collision-avoidance and small-craft radar practice; check the current chart, publication, local rules and official operational guidance before acting afloat.

Quick check

What does radar allow in restricted visibility?