sound signals Flashcards
one short
I am altering course to starboard
two short
I am altering my course to port
three short
I am operating stern propulsion
5 short
I am unaware of what you are trying to do
two prolonged one short
I intend to overtake on your port side
two prolonged two short
I intend to overtake on your port side
prolonged, short, prolonged, short
I am in agreement with your intent to overtake
one prolonged
I am approaching a bend or area where I can’t see
or
a power driven vessel when making way in restricted visibility will sound not exceeding two min
two prolonged
a power driven vessel while underway but not making way in restricted visibility will sound not exceeding two min
one prolonged two short
other vessels will sound this wile underway, not exceeding two min
one prolonged three short
immediately after towing
how long is a prolonged blast
around 4-6 seconds
how long is a short blast
about 1 second
what do you do for vessel at anchor less than 100m
rapid ringing bell for 5 seconds not exceeding one min
what do you do for vessel at anchor more than 100m in restricted visibilty
rapid ringing bell in the fore part for 5 seconds followed immediately by rapid ringing of the gong in the aft part for 5 seconds