Buoyage Flashcards
What is another name used for buoys?
(Navigation) Marks
What does IALA stand for?
International Association of Lighthouse Authorities
What are Cardinal Marks named after?
Four main parts of the compass (North, East, South, West)
What are Cardinal Marks used for?
Indicates where the safest water will be found
What are the topmarks of Cardinal Marks?
Two cones pointing in different directions
What colour are Cardinal Marks?
Yellow and Black
How many times do North Cardinal Marks flash?
Continuously
How many times do South Cardinal Marks flash?
6 + 1 long to make it unique (6 o’clock)
True or False?
All Cardinal Marks are lit
False
Not all Cardinal Marks are lit
What colour do Lateral Buoys flash?
Same colour as the buoy
What shapes are Portside Lateral Marks?
Can shaped
What shapes are Starboard Lateral Marks?
Cone shaped
In IALA-A what colour is Portside and what colour is Starboard?
Portside is red
Starboard is green
In IALA-B what colour is Portside and what colour is Starboard?
Portside is green
Starboard is red
Where is IALA-A used?
Africa, Australia, Europe, New Zealand, Russia
What are Lateral Marks used for?
To mark the edge of shipping channels
True or False?
The direction of Buoyage is usually the direction of the rising tide
True
Where is IALA-B used?
Canada, USA, South America, South East Asia, and parts of the Caribbean
What colour is the isolated danger mark?
Black with at least one red band
What topmarks does the isolated danger mark have?
Two black balls
What colour are special marks?
Yellow
What does the presence of safe water mark indicate?
That you are nearing your destination
What are special marks used for?
To relay some sort of informatoion
Name three limitations of Buoys as Navigation Aids?
Buoys could drag anchors and be out of position
Not all Buoys are lit at night
Buoys do get hit and can sink
You may miss one out following a channel and end up cutting a corner
In a scheme with several buoys its easy to lose count and turn early or late
Plus a couple more
What are the topmarks on special marks?
An X