Signal flags, as a part of the International Code of Signals can be used to communicate messages from one vessel to another while at sea. Signal flags, which have alpha-numeric correspondence, can be used to spell out messages; although mariners usually employ nautical signal flags in combinations which correspond to particular messages. Most boaters string signal flags end-to-end and and hang them from the rigging in bow-to-stern direction. Signal flags are also used to dress ships for ceremonial and festive occasions such as the beginning of the boating season.

The International Code of Signals has been in continuous use since 1857, when it was published by the British Board of Trade as a means of maritime communications. The original Code contained 17,000 signals using 18 signal flags, some of which were specific to the United Kingdom. The Code was revised in 1932 to include seven languages: English, French German, Italian, Japanese, Spanish and Norweigan. When the code was revised again in 1969, the revision included Russian and Greek.

Yacht Club Guide

Yacht Club Guide