Rule 37: Distress signals
When a vessel is in distress and requires assistance she shall use or exhibit the signals described in Annex IV to these Regulations.
What this means:
Rule 37: Distress signals – Our plain English guide to help you understand & remember this rule.
Distress signals
The distress signal rule directs you to ANNEX IV: Distress Signals of the regulations. This is the complete list of distress signals, including Mayday radio calls, electronic search and rescue frequencies and other communication protocols used in the GMDSS (Global Maritime Distress and Safety System) framework, many of which are covered in the Keeping Safe at Sea module of our Sailing Essentials course.
It lists the distress flares that can be used, morse code signalling–by any means, and some more antiquated practices, such as a burning barrel (not recommended unless you want to make a bad situation worse!)
