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A US Navy crewman signals the letter 'U' using flag semaphore during an underway replenishment exercise (2005). Flag semaphore (from the Ancient Greek σῆμα (sêma) 'sign' and - φέρω (-phero) '-bearer' [1]) is a semaphore system conveying information at a distance by means of visual signals with hand-held flags, rods, disks, paddles, or occasionally bare or gloved hands.
[4] A 1920 meeting of the five Principal Allied and Associated Powers met in Paris and proposed forming the Universal Electrical Communications Union on October 8, 1920 in Washington, D.C. [5] The group suggested revisions to the International Code of Signals, and adopted a phonetic spelling alphabet, but the creation of the organization was ...
Semaphore (lit. ' apparatus for signalling ' ; from Ancient Greek σῆμα ( sêma ) 'mark, sign, token' and Greek -φόρος ( -phóros ) 'bearer, carrier') [ 1 ] is the use of an apparatus to create a visual signal transmitted over distance.
Two sailing ships dressed overall with their signal flags. 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]
Flag semaphore signalling uses two flags, held in specific positions to signify letters. This method requires simple equipment but can be obscured by bad weather. This method requires simple equipment but can be obscured by bad weather.
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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 December 2024. Letter names for unambiguous communication Not to be confused with International Phonetic Alphabet. Alphabetic code words A lfa N ovember B ravo O scar C harlie P apa D elta Q uebec E cho R omeo F oxtrot S ierra G olf T ango H otel U niform I ndia V ictor J uliett W hiskey K ilo X ray L ...
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