13
Chapter 3
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Operating During Restricted Visibility
All operators should navigate with extreme
caution if visibility is restricted. The following
applies to vessels not in sight of one another.
• Every vessel must proceed at a safe speed
given the conditions of restricted visibility.
A power-driven vessel must have its engines
ready to maneuver immediately.
• Unless a risk of collision does not exist, an
operator who hears the fog signal of another
vessel ahead, is in a close-quarters situation
with another vessel ahead, or detects the
presence of another vessel by radar must
reduce speed to the minimum at which the
vessel can be kept on course. If necessary, the
operator should reduce speed to idle speed.
Power-Driven Vessel Encountering Sailing Vessel
Overtaking
• If you are overtaking,
give way and use sound
signals.
• If you are being
overtaken, stand on.
Meeting Head-On
• If you are the power-driven vessel, give way and
signal the other boater.
• If you are the sailing vessel, stand on.
Paths That Cross
• If you are the power-driven vessel, give way and
signal the other boater.
• If you are the sailing vessel, stand on.
signals intent
TOOT
signals intent
to pass on the
give-way vessel's
port (left) side
TOOT
signals intent
to pass on the
give-way vessel's
port (left) side
TOOT
signals intent
to go right
TOOT
signals
agreement
TOOT
signals intent
to go left
TOOT TOOT
signals intent to pass
on the give-way
vessel's starboard
(right) side
TOOT TOOT
signals intent to pass
on the give-way
vessel's starboard
(right) side
TOOT TOOT
Give way! Give way!
Give way!
Give way!
Give way!
REMEMBER …
Every operator is responsible for avoiding a
collision. In complying with the navigation
rules, operators must consider all dangers of
navigation; risk of collisions; and any special
conditions, including the limitations of the
vessels involved. These considerations may
make a departure from the navigation rules
necessary to avoid immediate danger.
Copyright © 2014 Boat Ed, www.boat-ed.com
