1. Distress Signals | Flash Cards
COLREGS
Annex IV
Distress Signals | Flash Cards
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2. 1
A gun or other explosive device fired at intervals of about a minute.

3. 2
Continuous sounding with any fog signalling appliance.

4. 3
Rockets or shells throwing red stars fired one at a time in short intervals.

5. 4 A signal made by any signalling method consisting of the group SOS
***---***

6. 5
A signal sent by radiotelegraphy consisting of the word ‘MAYDAY’

7. 6
The International Code of Distress consisting of NC.

8. 7
A signal consisting of a square flag with a ball or a shape resembling a ball above or below it.

9. 8
Flames from the vessel such as from an oil barrel.

10. 9
A rocket parachute flare or a handheld flare showing a red light.

11. 10
A smoke signal giving off orange coloured smoke.

12. 11
Slowly raising and lowering of the arms outstretched to each side.

13. 12
A distress alert by means of digital selective calling (DSC) transmitted on:
(i)      VHF channel 70; or
(ii)     MF/HF on the frequencies kHZ, kHZ, kHZ, 6312 kHZ,      12577kHZ or kHZ.

14. 13
A ship to shore alert sent by INMARSAT or other mobile satellite provider.

15. 14
Signals transmitted by emergency position‑indicating radio beacons.

16. 15
Approved signals transmitted by radio communication systems, including survival craft radar transponders.

17. 16
Attention is drawn to the relevant sections of the International Code of Signals, the International Aeronautical and Maritime Search and Rescue Manual, Volume III and the following signals:
A piece of orange‑coloured canvas with either a black square and circle or other appropriate symbol (for identification from the air);

18. 17
Attention is drawn to the relevant sections of the International Code of Signals, the International Aeronautical and Maritime Search and Rescue Manual, Volume III and the following signals:
A dye marker.