Connecticut Safe Boating Study Guide


OPERATION IN RESTRICTED VISIBILITY

During periods of restricted visibility (such as rain, mist, heavy fog, or hours of darkness), you should slow to minimum speed to give your vessel an opportunity to maneuver should the risk of a collision arise.

WHEN VISIBILITY IS RESTRICTED BY FOG OR SMOKE, ADDITIONAL SOUND SIGNALS ARE REQUIRED:

VESSEL TYPE

SITUATION

SOUND REQUIREMENT

Power Vessel

Underway

Prolonged blast every 2 minutes

Sailing Vessel

Underway

Prolonged blast + two short blasts every 2 minutes

Power Vessel

Underway but not moving

Two prolonged blasts every 2 minutes

Any Vessel

Anchored

5 seconds of rapid bell ringing every minute

Any Vessel

Run aground

3 bell strokes + 5 seconds of rapid bell ringing + 3 bell strokes every minute

UNLESS THE RISK OF A COLLISION IS PRESENT, YOU SHOULD REDUCE YOUR SPEED TO THE MINIMUM YOU NEED IN ORDER TO KEEP ON COURSE WHEN YOU HEAR ANY OF THE SOUND SIGNALS ABOVE.