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Buoyage system (Questions and Answers)

Cardinal Buoys for Buoyage System A & B

North Cardinal

East Cardinal

South Cardinal

West Cardinal

       
   
               
           
         
                   
       
       
                   
 
   

White Light;

V.Q. Flashing

Or Quick Flashing

Continuous;

Pass to the North
side of this buoy

White light;

V.Q.or Q. Flashing

3 every 5 or 10 seconds;

Pass to the East
side of this buoy

White light;

V.Q. or Q. 6 flashes plus
a long flash every
10 or 15 seconds;

Pass to the South
side of this Buoy

White light;

V.Q. or Q.
9 Flashes every 10 or 15 seconds;

Pass to the West
side of this buoy


Cardinal Buoys (Marking a new danger)
       
   
   
       
               
           
               
           
       

This lets you know there is a new danger that may not be in the weekly notices to mariners;

The second cardinal buoy will have a racon beacon that you will see on your radar display, usually Morse D

You still keep to the North side of the buoy's


Lateral Marks for Buoyage System A (Check charts for direction of Buoyage)
       
       
Port Hand Lateral Mark

Port Hand Lateral Mark
Preferred channel to Starboard

Starboard Hand Lateral Mark
Preferred channel to Port

Starboard Hand Lateral Mark

       
       
       

Red Light;

Any Rhythm except 2 +1;

Going with direction of Buoyage, alter to starboard and take the buoy down your port side

Red Light;

Flashing 2 +1;

Going with direction of Buoyage, alter to starboard and take the buoy down your port side, you can go up the wrong side of the buoy if you have a shallow drafted vessel and have local knowledge of the area

Green Light;

Flashing 2 + 1;

Going with direction of Buoyage, alter to port and take the buoy down your starboard side, you can go up the wrong side of the buoy if you have a shallow drafted vessel and have local knowledge of the area

Green Light;

Any Rhythm except 2 + 1;

Going with direction of Buoyage, alter to port and take the buoy down your starboard side


       
Lateral Marks for Buoyage System B (Check Charts for Direction of Buoyage)
       

Port Hand Lateral Mark

Port Hand Lateral Mark
Preferred channel to Starboard

Starboard Hand Lateral Mark
Preferred channel to Port

Starboard Hand Lateral Mark
       
       
       

Green Light;

Any Rhythm except 2 +1;

Going with direction of Buoyage, alter to starboard and take the buoy down your port side

Green Light;

Flashing 2 +1;

Going with direction of Buoyage, alter to starboard and take the buoy down your port side, you can go up the wrong side of the buoy if you have a shallow drafted vessel and have local knowledge of the area

Red Light;

Flashing 2 + 1;

Going with direction of Buoyage, alter to port and take the buoy down your starboard side, you can go up the wrong side of the buoy if you have a shallow drafted vessel and have local knowledge of the area

Red Light;

Any Rhythm except 2 + 1;

Going with direction of Buoyage, alter to port and take the buoy down your starboard side


       

Special Marks

       

Port Hand Lateral Special Mark

Starboard Hand Lateral Special Mark

Spar Buoy Special Mark

Safewater Special Mark

       
       
       

Yellow Light;

Any Rhythm not used for any buoys with white lights in the area;

Going with direction of Buoyage, alter to starboard and take the buoy down your port side Going with direction of Buoyage, alter to port and take the buoy down your starboard side Pass either side, preferable alter to starboard and take the buoy down your port side Pass either side, preferable alter to starboard and take the buoy down your port side

       
Safe Water and Isolated Danger Buoys
       
Safewater or Landfall Buoy    

Isolated Danger Mark

       
   
     
       
   
       

White Light;

One of four flashes

•  Isophase

•  Occulting

•  Morse A

•  Long flash every 10 seconds

You can pass either side of this buoy, preferable altering to starboard and take the buoy down your port side

Long Flash is between 4 6 seconds

 

White Light;

Group Flash 2;

You can pass either side of this buoy, preferable altering to starboard and take the buoy down your port side


       

Direction Of Buoyage

       
   
     
 

Magenta Arrow

This will be on every chart and lets you know the direction of Buoyage

Caution !!!

During the Oral Exam, the captain will test your knowledge on the buoys, it's common for them to place the wrong top marks on the buoys

 

       

Direction of Buoyage in Buoyage System A ( U.K. )

       

North up the North Sea, North up the Irish Sea, North up the west coast of Ireland, East to West in the Pentland Firth and English Channel, and also going into every harbour unless there is two channels going into that harbour then direction of buoyage is going in the South entrance


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