3.3 navigation Buoys

Bifurcation Buoys

Bifurcation buoys space lateral system buoys that show the junction of channels. They have actually three alternating stripes that red and green and the peak stripe indicates the location of the preferred, or main, channel.

You are watching: You see a white buoy with a blue band. what type of buoy is this

In the diagram on web page 22, the bifurcation buoy has actually a red top. Using the rule, Red best Returning, that means if you great to monitor the desired channel in this case, the bifurcation buoy must pass you on the right.

Fairway Buoys

Fairway buoys have one upright red stripe and also one upright white stripe. The red stripe is ~ above the side of the channel whereby you would find the red buoys.

Day Beacons


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Day Beacons use the exact same colours together the Lateral System, yet in one situation may substitute black color for green. They deserve to be channel and danger markers or bifurcation markers, but are typically channel, or risk markers.


They are not lighted and also are for day-time use only.

A port hand work beacon, which has a black color or eco-friendly square, centred ~ above a white background v a eco-friendly reflective border, marks the harbor hand side of the channel or a danger and must be retained on the port side once proceeding upstream. If numbered, the number will be odd and also of a reflective material.


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A starboard hand job beacon, which has actually a red triangle centred on a white background with a red reflective border, marks the starboard hand next of the channel or a danger and must be retained on the starboard side as soon as proceeding upstream.


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Ranges consist of of 2 markers, upside down to each various other with one well in prior of the other. The front marker is reduced than the rear marker.

They carry out a encourage track for navigators as soon as both marks are in line. The operator will watch one mite on peak of the other.


Special function Buoys

There room a number of special objective buoys the mark everything from anchorages come swimming locations to no-wake zones and danger areas.

Pleasure craft operator must find out to identify these buoys and also know what castle mean.

They are depicted and also explained in the diagrams the follow.

Keep the end Buoys


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Keep out Buoys mark an area where boating is prohibited. They are white through two horizontal orange bands and an orange cross within an orange diamond on two opposite sides. If they carry 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. Castle may suggest such things as speed limits. They room white through two horizontal orange bands and an orange circle on 2 opposite sides. Inside the orange circles will certainly be a black figure or price indicating the restriction. If they bring a light, the light is a yellow flashing (Fl) four seconds, light.


Hazard Buoys note random perils such together rocks and also shoals. They are white through two horizontal orange bands and also an orange diamond on two opposite sides. If they lug a light, the light is a yellow flashing (Fl) four seconds, light.


Information Buoys save on computer information, by indigenous or symbols, of interest to mariners, such together directions come marinas. They room white with two horizontal orang bands and also an orange square on two opposite sides. If they lug a light, the light is a yellow flashing (Fl) 4 seconds, light.


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


Posted Command indicators may be encountered indigenous time come time. They will include warnings such as No wake up Zones, No Anchorage Signs, speed Limit Signs, short Head Dam Signs, power Line Hazards and also Pipe line Hazards.


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


The global Code Flag A (Alpha) is a Blue and also White flag presented from the boat or dock indigenous which diving activity is taking place.


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


All ship operators must stay clear and also pass slowly.

Pleasure craft operators should take early and also substantial activity to avoid locations where these buoys are displayed.


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