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DISTRESS SIGNALS
Distress signals under both International and
Inland Rules are as follows:
The following signals, used or exhibited either
together or separately, indicate distress and need of
assistance:
1. A gun or other explosive signal fired at inter-
vals of about a minute
2. A continuous sounding with any fog-signalling
apparatus
3. Rockets or shells, throwing red stars fired one
at a time at short intervals
4. A signal made by light, radio, or by any other
signalling method consisting of the group • • • - - - • • •
(SOS) in the Morse code
5. A signal sent by radiotelephone consisting of
the spoken word “Mayday”
6. The International Code Signal of distress
indicated by N.C. (NOVEMBER CHARLIE)
7. A signal consisting of a square flag having
above or below it a ball or anything resembling a ball
8. Flames on the vessel (as from a burning tar
barrel, oil barrel, etc.)
9. A rocket parachute flare or a hand flare show-
ing a red light
10. A smoke signal giving off orange-colored
smoke
11. Slowly and repeatedly raising and lowering
arms outstretched to each side
12. The radiotelegraph alarm signal
13. The radiotelephone alarm signal
14. Signals transmitted by emergency position-
indicating radio beacons
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