Choose your study region

Choose a course collection, not your nationality. Changing region does not change your courses, progress or access.

Optional preference saved in this browser on Compass Revision. It does not sync between devices or the separate course websites. You are never redirected automatically.

All questions
Sound signals

What Rule 35 signal should a yacht under sail alone make in restricted visibility?

Short answer

One prolonged followed by two short blasts at intervals of not more than two minutes

A sailing vessel under sail alone sounds one prolonged followed by two short blasts at intervals of not more than two minutes. If propulsion machinery is being used, apply power-driven status instead. Revise Fog Signals (Rule 35).

Quick check

What Rule 35 signal should a yacht under sail alone make in restricted visibility?