GEKKO GTS 20 2015, Owner'S Manual

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Port-to-Port Passing
Starboard-to-Starboard Passing
Crossing
In a crossing situation, the give-way vessel must act to avoid a collision. This may
include altering its course to pass astern (behind) the stand-on vessel or slowing
down. The stand-on vessel should maintain its course and speed. The give-way ves-
sel should signal the stand-on vessel with one short horn blast, and the stand-on ves-
sel should agree with one short horn blast in response.
Crossing
Overtaking
When passing another vessel, you are the give way vessel. This means that the
other vessel is expected to maintain its course and speed. As the give-way vessel
you may pass on either side of the other vessel, but you must stay out of its way as
you clear it, altering course and speed as necessary. Passing portside requires two
short blasts on the horn signaling the overtaking boat’s intention, and two short
blasts for the stand-on vessel’s agreement. Passing on the starboard side requires
only one short blast on the horn for both intent and agreement.