Radar revision module 8 of 9
FOG
Restricted Visibility Radar
Apply Rule 19 with systematic radar observation, safe-speed time budgets, exact forward/abaft course cautions, fog-signal response, workload control and post-action verification.
Rule 19 applicabilityradar-only collision risk
8 guided lessons · 8 practice questions · 8 flashcards
3 outcomes · self-guided revision
- State when Rule 19 applies and keep radar, safe speed, lookout, sound signals, lights and engine readiness inside one restricted-visibility plan.
- Use systematic radar evidence to determine risk or close quarters under Rule 19 without inventing normal-visibility vessel roles or a universal CPA threshold.
- Set and continuously reassess safe speed from detection-to-response time while combining long-range warning with suitable close-range detail.
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