Distress signals
The following signals, used together or separately, indicate distress and need of assistance:
- a signal sent by radio consisting of the spoken word “‘Mayday”;
- slowly and repeatedly raising and lowering arms outstretched to each side;
- a rocket parachute flare or a hand flare showing a red light;
- a smoke signal of orange-coloured smoke;
- a signal made by radio or by any other signalling method consisting of the group . . . – – – . . . (SOS) in the Morse Code;
- a gun or explosive signal fired at intervals of a minute;
- a continuous sound with any fog-signalling apparatus;
- flames on the vessel (as from a burning tar barrel, oil barrel, etc.);
- rockets or shells, throwing red stars at short intervals;
- the International Code Signal of distress indicated by N and C flags;
- a signal consisting of a square flag having above or below it a ball or anything resembling a ball.
- a signal from an EPIRB or SART