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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.
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.
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]
A red flag warning on the beach is a serious safety alert issued by lifeguards or beach authorities. It signifies extremely dangerous swimming conditions due to strong currents, high surf, or a ...
According to the U.S. Lifesaving Association, beach flags and their designated meanings were created to help inform people of just that. Many of these flags are also used around the world.
A lifeguard (United States) on patrol during Hurricane Earl. Red and yellow flag indicating a bathing area patrolled by lifeguards. A lifeguard is a rescuer who supervises the safety and rescue of swimmers, surfers, and other water sports participants such as in a swimming pool, water park, beach, spa, river and lake.
Nominated beach lifeguard units Declared Assets are facilities that have given a declaration to the Coastguard of a certain level of availability or training. Other, additional assets that may be tasked to assist with any incident include; Mountain Rescue Teams, the Armed Forces, local police forces, fire and rescue services, regional ambulance ...
Warning pennant Warning flag. A single red pennant was shown from the top of the tower as a small craft advisory; for a gale warning, two such pennants were used. Two square flags, red with a black square at center, indicate an approaching hurricane or winds >73 MPH. One such flag warns of storm-force winds or an approaching tropical storm.