Skip to main content
IALA
COLREG
COLREG
IALA
Lights
Sounds
GMDSS
Language
EN
ES
CA
DE
FR
IT
PT
NL
EL
HR
PT-BR
Quick sprint
Sign in
1/32
0✓
Under Rule 36 — Signals to Attract Attention, what should a navigator remember?
A
Two or three seconds is neither: train your timing so 1 s and 4 6 s are unmistakably distinct to anyone listening.
B
≥ 12 m: whistle required.
C
The whistle, bell and gong shall comply with the specifications of Annex III.
D
Must not be mistakable for a prescribed signal or navigation aid.