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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.
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 ...
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]
To avoid having to carry multiple sets of signal flags, the Code uses three "substitute" (or "repeater") flags. These repeat the flag at the indicated position. For instance, to signal MAA ("I request urgent medical advice" the Mike, Alfa, and 2nd substitute flags would be flown, the substitute indicating a repeat of the second character.
By 1653, the Royal Navy had issued instructions by which an admiral could signal various orders by hoisting flags in various locations on his ship. Modern naval code signalling began with the invention of maritime signal flags in the mid-17th century by the then-Duke of York (subsequently James II of England ) [ 2 ] who was created Lord High ...
Prior to 1959, the Navy Infantry Battalion flag was used to represent the U.S. Navy. For more information, see the Navy's flag history page , SeaFlags , Flags of the World , U.S. Navy document NTP 13(B) [1] , section 1710, and Navy regulation OPNAVINST 10520.1 (which replaced a similar SECNAVINST 10520.2D regulation from 1974).
Naval flags, both Naval jacks and naval ensigns, are a subset of Maritime flags flown by naval forces. There are several lists of naval flags, organised by present or former country: Current countries
Pages in category "Signal flags" The following 15 pages are in this category, out of 15 total. ... Japanese Navy Signal Flags; M. Maritime flag signalling; N. Naval ...