What does a prolonged horn every 2 minutes mean?
What does a prolonged horn every 2 minutes mean? One prolonged blast at intervals of not more than two minutes is the signal used by power-driven vessels when underway.
How many whistle blasts for an emergency?
When you decide to stay put and wait for rescue, prepare help signals as soon as possible. The international emergency sign for distress is three of any signal: three shots, three blasts on a whistle, three flashes with a mirror, or three fires evenly spaced.
What does 2 short and 1 long horn mean?
Two short and one long horn This sound means that a passenger has pulled a chain or the guard has pulled a vacuum break.