3.3 navigating Buoys

Bifurcation Buoys

Bifurcation buoys space lateral device buoys that suggest the junction that channels. They have three alternative stripes that red and also green and also the top stripe indicates the place of the preferred, or main, channel.

You are watching: You see a white marker with an orange circle and black lettering

In the diagram on web page 22, the bifurcation buoy has a red top. Utilizing the rule, Red right Returning, that means if you wish to monitor the desired channel in this case, the bifurcation buoy need to pass friend on the right.

Fairway Buoys

Fairway buoys have actually one vertical red stripe and also one vertical white stripe. The red stripe is on the next of the channel where you would uncover the red buoys.

Day Beacons


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Day Beacons usage the same colours as the Lateral System, yet in one situation may substitute black for green. They can be channel and also danger mite or bifurcation markers, however are usually channel, or peril markers.


They are not lighted and are because that day-time usage only.

A port hand job beacon, which has a black or environment-friendly square, centred ~ above a white background v a environment-friendly reflective border, marks the port hand side of the channel or a danger and must be maintained on the harbor side as soon as proceeding upstream. If numbered, the number will certainly be odd and also of a reflective material.


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A starboard hand day beacon, which has a red triangle centred ~ above a white background with a red reflective border, point out the starboard hand next of the channel or a danger and also must be retained on the starboard side as soon as proceeding upstream.


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Ranges consists of two markers, upside under to each various other with one well in front of the other. The front marker is lower than the rear marker.

They carry out a encourage track for navigators once both marks room in line. The operator will view one mite on height of the other.


Special function Buoys

There are a variety of special purpose buoys that mark whatever from anchorages come swimming locations to no-wake zones and danger areas.

Pleasure craft operators must learn to determine these buoys and know what they mean.

They room depicted and explained in the diagrams the follow.

Keep out Buoys


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Keep the end Buoys note an area wherein boating is prohibited. They room white through two horizontal orange bands and also an orange cross inside an orange diamond on two opposite sides. If they lug a light, the irradiate is a yellow flashing(Fl) 4 seconds, light.


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Control Buoys note an area where boating is restricted. Lock may show such things as rate limits. They are white through two horizontal orange bands and also an orange circle on 2 opposite sides. Within the orange circles will certainly be a black number or price indicating the restriction. If they carry a light, the light is a yellow flashing (Fl) 4 seconds, light.


Hazard Buoys note random dangers such together rocks and also shoals. They room white through two horizontal orange bands and an orange diamond on 2 opposite sides. If they carry a light, the irradiate is a yellow flashing (Fl) 4 seconds, light.


Information Buoys save on computer information, by words or symbols, of interest to mariners, such as directions come marinas. They are white through two horizontal orang bands and also an orange square on 2 opposite sides. If they lug a light, the irradiate is a yellow flashing (Fl) four seconds, light.


Swimming Buoys note th perimeter the a swim area. They space white. If they lug a light, the irradiate is a yellow flashing (Fl) 4 seconds, light.


Posted Command indicators may it is in encountered native time come time. They will incorporate warnings such together No wake up Zones, No Anchorage Signs, rate Limit Signs, short Head Dam Signs, power Line Hazards and also Pipe line Hazards.


Cautionary Buoys are offered to warning mariners of risks such together firing ranges, gyeongju courses, seaplane bases, traffic separations, underwater structures and also areas whereby no safe through channel exists. Yellow in color they bring an identification mark, or letter. If they have a topmark, the is a single yellow "X" shape. If lighted, the irradiate a yellow flashing (Fl) four seconds light.


The worldwide Code Flag A (Alpha) is a Blue and White flag presented from the watercraft or dock indigenous which diving activity is acquisition place.


The specific location of the diver is significant with a white buoy transferring a red flag of not less than 50 centimeter square v a white diagonal stripe extending from the guideline of the hoist to the bottom that the fly. If it is lighted, it has actually a yellow flashing (Fl) (four seconds), light.


All ship operators need to stay clear and also pass slowly.

Pleasure craft operators must take early and substantial activity to avoid areas where these buoys space displayed.


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