These signals are used by ships, aircraft or persons in distress to communicate with rescue service stations, lifeboats, vessels and aircraft engaged in search-and-rescue operations. Use the most suitable signal for the situation and taking into account the prevailing conditions.
Search-and-rescue unit replies These indicate that you have been seen and assistance will be given as soon as possible.
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Orange smoke Surface-to-air signals
These are shown by means of lights or flags or by laying out the symbol on the ground or deck in highly contrasting colours.
VW I require assistance N No or negative Yes or affirmative RYA Seamanship for Sea Anglers 105 I require medical assistance C