IALACOLREG
35

Sound Signals in Restricted Visibility

In restricted visibility, power-driven vessels making way sound one prolonged blast every 2 minutes. Vessels not making way sound two prolonged blasts.

Rule 35 prescribes fog signals in restricted visibility.

a
A power-driven vessel making way through the water: one prolonged blast at intervals of not more than 2 minutes.
b
A power-driven vessel underway but stopped and not making way: two prolonged blasts in succession at intervals of not more than 2 minutes.
c
Vessels not under command, restricted in ability to manoeuvre, constrained by draught, sailing, fishing, or towing/pushing: one prolonged followed by two short blasts at intervals of not more than 2 minutes.
f
A vessel at anchor shall ring the bell rapidly for about 5 seconds at intervals of not more than one minute. Vessels 100m+ also sound the gong aft.
g
A vessel aground shall give the bell signal and additionally three separate and distinct strokes on the bell before and after the rapid ringing.

Puntos Clave

1

Making way: 1 prolonged blast every 2 minutes

2

Stopped: 2 prolonged blasts every 2 minutes

3

NUC/RAM/sailing/fishing/towing: 1 prolonged + 2 short every 2 minutes

4

At anchor: rapid bell ringing for 5 seconds every minute

Errores Frecuentes

Not changing from one blast to two blasts when stopping in fog

Confusing the intervals (2 minutes for underway, 1 minute for anchor)

Pon a Prueba tus Conocimientos

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