Either vessel fails to understand the intentions or actions of the other…give at least five short and rapid blasts on the whistle. Such signal may be supplemented by a light signal of at least five short and rapid flashes.Â
 Either vessel fails to understand the intentions or actions of the other…give at least five short and rapid blasts on the whistle. Such signal may be supplemented by a light signal of at least five short and rapid flashes.Â