Yamaha 115A Owner's Manual page 14

RULES WHEN ENCOUNTERING
VESSELS
There are three main situations which you
may encounter with other vessels which
could lead to a collision unless the Steering
Rules are followed:
Meeting
(you are approaching another vessel
head-on)
Crossing
(you are travelling across the other ves-
sel's path)
Overtaking
(you are passing or being passed by
another vessel)
In the following illustration, your boat is in
the center. You should give the right-of-way
to any vessels shown in white area (you are
the Give-Way vessel). Any vessels in the
shaded area must yield to you (they are the
Give-Way vessels). Both you and the meet-
ing vessel must alter course to avoid each
other.
Meeting
If you are meeting another power vessel
head on, and are close enough to run the
risk of collision, neither of you has the right-
of-way! Both of you should alter course to
avoid an accident. You should keep the
other vessel on your port (left) side. This
rule doesn't apply if both of you will clear
one another if you continue on your set
course and speed.
Crossing
When two power driven vessels are cross-
ing each other's path close enough to run
the risk of collision, the vessel which has
the other on the starboard (right) side must
keep out of the way of the other. If the other
vessel is on your right, you must keep out of
its way; you are the Give-Way vessel. If the
other vessel is on your port (left) side,
remember that you should maintain course
and direction, provided the other vessel
gives you the right-of-way as it should.
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Overtaking
If you are passing another vessel, you are
the "Give-Way" vessel. This means that the
other vessel is expected to maintain its
course and speed. You must stay out of its
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