one short blast
one short blast
Two short blasts
Two short blasts
Two short blasts
A common signal sound to pass another boater is one prolonged blast followed by two short blasts on a horn or whistle. This signal indicates that you intend to pass on the other boat's starboard side. Make sure to maintain a safe distance and communicate your intentions clearly to avoid collisions.
5 short blasts.
on short blast
2 short blasts
One short blast of the horn tells another boater that you wish them to pass on your left side.
one short blast
2 short blasts