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  2. International maritime signal flags - Wikipedia

    en.wikipedia.org/wiki/International_maritime...

    International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals . [ 1 ] Various navies have flag systems with additional flags and codes, and other flags are used in special uses, or have historical significance.

  3. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    What is now the International Code of Signals was drafted in 1855 by the British Board of Trade and published in 1857 as the Commercial Code. It came in two parts: the first containing universal and international signals, and the second British signals only. Eighteen separate signal flags (see chart) were used to make over 70,000 possible messages.

  4. Naval flag signalling - Wikipedia

    en.wikipedia.org/wiki/Naval_flag_signalling

    Naval flag signalling undoubtedly developed in antiquity in order to coordinate naval action of multiple vessels. In the Peloponnesian War (431 – 401 BCE) squadrons of Athenian galleys were described by Thucydides as engaging in coordinated maneuvers which would have required some kind of communication; [1] there is no record of how such communication was done but flags would have been the ...

  5. Flag signals - Wikipedia

    en.wikipedia.org/wiki/Flag_signals

    A designator flag is used to indicate if a flaghoist signal is meant to be interpreted as an ICS signal or as a naval signal. The U.S. Navy uses a set of 68 flags, including flags for each letter of the alphabet and each numeral to convey messages of tactical or administrative nature. [2] [better source needed]

  6. Day shapes - Wikipedia

    en.wikipedia.org/wiki/Day_shapes

    The meanings of the shapes are defined by the International Regulations for Preventing Collisions at Sea (ColRegs). Day shapes from ColRegs. Day shapes are black in color and their sizes are determined by the ColRegs; for example, the size of the ball is not less than 0.6 metres (2.0 ft).

  7. 13 versions of the US flag you've probably never seen - AOL

    www.aol.com/news/2016-08-30-13-versions-american...

    The flag is also a symbol of exploration. It was planted on the moon during the first landing by Apollo 11 astronauts in 1969. The flag even has its own day -- each year Americans celebrate flag ...

  8. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    However there are even more symbols and codes care takers should be aware of in order to protect children from predators. SEE ALSO: Mother horrified after learning what heart symbol on daughter's ...

  9. Diver down flag - Wikipedia

    en.wikipedia.org/wiki/Diver_down_flag

    A diver getting ready to dive in front of an alpha flag. As a code signal the International maritime signal flag Alpha (or "Alfa", signifying the letter "A") has the meaning of "I have a diver down; keep well clear at slow speed", [1] used to indicate that the vessel has limited maneuverability, and the presence of a diver in the water around the boat.