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Encyclopedia > International maritime signal flags

The system of international maritime signal flags is a way of representing individual letters of the alphabet in signals to or from ships. It is a component of the International Code of Signals. [1] The International Code of Signals (INTERCO) is a signal code to be used by merchant and naval vessels to communicate important messages about the state of a vessel and the intent of its master or commander when there are language barriers. ... Italian Full rigged ship Amerigo Vespucci in New York Harbor, 1976 A ship is a large watercraft capable of deep water navigation. ... The International Code of Signals (INTERCO) is a signal code to be used by merchant and naval vessels to communicate important messages about the state of a vessel and the intent of its master or commander when there are language barriers. ...


There are various methods that the flags can be used as signals:

  • each flag spells out a letter of an alphabetic message.
  • individual flags have specific and standard meanings; for example, diving support vessels raise the "A flag" indicating their inability to move from their current location because they have a diver underwater.
  • one or more flags form a code word whose meaning can be looked up in a code book held by both parties. An example is the Popham numeric code used at the Battle of Trafalgar.
  • in yacht racing and dinghy racing, flags have other meanings; for example, the P flag is used as the "preparatory" flag to indicate an imminent start, and the S flag means "shortened course".

NATO uses an extra set of flags to communicate specific types of messages. A diving support vessel is a ship that is used as a floating base for professional diving projects. ... Sir Home Riggs Popham (1762 - September 20, 1820), was a British admiral who saw service during the French Revolutionary Wars and the Napoleonic Wars. ... Combatants United Kingdom First French Empire Kingdom of Spain Commanders Horatio Nelson, 1st Viscount Nelson † Pierre Charles Silvestre de Villeneuve Strength 27 ships of the line France: 18 ships of the line and 8 others. ... Inshore yacht racing on Sydney Harbour, Australia Yacht racing is the sport of competitive sailing. ... Dinghy racing is the competitive sport of sailing dinghies. ... NATO 2002 Summit in Prague. ...

Contents

Letters

* ^  N and C together (No and Yes) is used as a distress signal. A distress signal is an internationally recognized means of obtaining help by using a radio, displaying a visual object or making noise from a distance. ...


Numbers

Type of flag 0 1 2 3 4 5 6 7 8 9
Allied flags
Pennants

Image File history File links ICS_Zero. ... Image File history File links ICS_One. ... Image File history File links ICS_Two. ... Image File history File links ICS_Three. ... Image File history File links ICS_Four. ... Image File history File links ICS_Five. ... Image File history File links ICS_Six. ... Image File history File links ICS_Seven. ... Image File history File links ICS_Eight. ... Image File history File links ICS_Niner. ... A pennant is usually a narrow tapering flag most commonly flown by ships at sea. ... Image File history File links ICS_Pennant_Zero. ... Image File history File links ICS_Pennant_One. ... Image File history File links ICS_Pennant_Two. ... Image File history File links ICS_Pennant_Three. ... Image File history File links ICS_Pennant_Four. ... Image File history File links ICS_Pennant_Five. ... Image File history File links ICS_Pennant_Six. ... Image File history File links ICS_Pennant_Seven. ... Image File history File links ICS_Pennant_Eight. ... Image File history File links ICS_Pennant_Niner. ...

Other flags

Prompt First substitute Second substitute Third substitute Fourth substitute

Allied signals

Code/answer (ANS) Preparative (PREP) Question (INT) Negation (NEGAT) Designation (DESIG)
Course Pennant (CORPEN) Turn (TURN) Screen (SCREEN) Speed (SPEED) Station (STATION)
Port (PORT) Starboard (STBD) Formation (FORM) Division (DIV) Squadron (SQUAD)
Group (FLOT) Subdivision (SUBDIV) Emergency (EMERG)

References

(1995) International Code of Signals. International Maritime Organisation. 

  1. ^ International Marine Signal Flags

External links

Wikimedia Commons has media related to:
International Code of Signals

  Results from FactBites:
 
International maritime signal flags - Wikipedia, the free encyclopedia (502 words)
The system of international maritime signal flags is a way of representing individual letters of the alphabet in signals to or from ships.
in yacht racing and dinghy racing, flags have other meanings; for example, the P flag is used as the "preparatory" flag to indicate an imminent start, and the S flag means "shortened course".
Description: the flags for the esperanto letters with diacritical marks have the lighter color in the normal flag replaced with light green, which is not used in any normal flag.
Nautical Know How - Nautical Flags (581 words)
Also called signaling flags, they are a set of flags of different colors, shapes and markings which used singly or in combination have different meanings.
Two-flag signals are mostly distress and maneuvering signals.
Six-flag signals are used when necessary to indicate north or south or east or west in latitude and longitude signals.
  More results at FactBites »

 
 

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