Study Topics
Boats in Action Section Quiz Site Map
Navigation Sounds
Animations for Proper Sound Signals

Click on the links below to view the navigation sound animations:

Passing Sound Animations

Leaving the Dock Animation

Danger Signal Animation

Channel Obstruction Animation

Danger Signal Animation
Danger Signal

Danger Signal
If you or a vessel that you are approaching feels that a dangerous situation is developing, the danger signal should be sounded. The signal, which is 5 short horn blasts, alerts nearby boats that you don't know what their intentions are, or that you feel that there is a risk of collision.

Note: These are not the only rules concerning sound signals in restricted visibility; there are additional rules concerning sound signals that may be found in the Rules of the Road or in Chapman's Piloting.