Bouyage Flashcards
What is IALA?
INTERNATIONAL ASSOCIATION OF MARINE AIDS TO NAVIGATION AND LIGHTHOUSE AUTHORITIES
IALA is a non-profit, international technical association.
IALA contributes to a reduction of marine accidents, increased safety of life and property at sea, as well as the protection of the marine environment.
What can I reference the IALA Bouyage system?
NP 735
What is the IALA B region?
North- & South-America, South Korea, Japan, Philippines and the eastern Pacific (American influenced)
What is the IALA A region?
Rest of the world (UK influenced)
What is a NORTH Cardinal marker?
North of the danger
Color: Black over yellow
Shape: Pillar or spar (if a bouy)
Topmark: Two black cones apex pointing UPWARDS
Retroreflector: Blue over yellow
Light: White QF or VQF
Would always pass NORTH of a north cardinal marker
What is a EAST Cardinal marker?
EAST of the danger
Color: Black Yellow Black
Shape: Pillar or spar (if a bouy)
Topmark: Two black cones apex pointing AWAY (egg)
Retroreflector: Blue over blue
Light: White VQF(3)5s or QF(3)10s
Would always pass EAST of a east cardinal marker
What is a SOUTH Cardinal marker?
SOUTH of the danger
Color: Yellow over black
Shape: Pillar or spar (if a bouy)
Topmark: Two black cones apex pointing DOWNWARDS
Retroreflector: Yellow over blue
Light: White VQF(6)+LF(1)10s or QF(6)+LF(1)15s
Would always pass SOUTH of a east cardinal marker
What is a WEST Cardinal marker?
WEST of the danger
Color: Yellow Black Yellow
Shape: Pillar or spar (if a bouy)
Topmark: Two black cones apex pointing TOWARDS each other (Wine glass)
Retroreflector: Yellow over yellow
Light: White QF(9)15s or VQF(9)10s
Would always pass WEST of a west cardinal marker
What is an Isolated danger mark?
Marks danger with navigable waters all around, you would do a chart assessment and then pass it well clear
Color: Black and red
Topmark: Two black spheres
Shape: No significant shape attached, in case of bouys - Pillar or Spar
Light: White GP.FL(2)
Retroreflector: Blue over red
I would consult the chart and pass it with by a wider as practicable
What is a Safe water mark?
- Used to indicate centreline
- Mid-channel or Landfall bouy
- Indicate the best point of passage under a fixed bridge
Color: Red and white
Topmark: Red sphere if the bouy isn’t spherical, fitted wherever practicable
Shape: Spherical, Pillar or Spar
White light:
* Occulting (more light than dark)
* Isophase (equal light and dark)
* Flashing one long every 10s
* Morse A (Dot Dash) (Short Long)
Retroreflector: Red over white or white and red band
I would consult the chart and pass it on my port side going with direction of bouyage therefore as rule 9 says it would be in the centre of a channel and we drive on the right
REGION A
What is a STBD Lateral mark?
Color: Green
Shape: Conical, Pillar or Spar
Topmark: Single green cone pointing upwards
Light: Green flashing light any rhythm other than composite group flashing (2+1)
Retroreflector: Green band or triangle
REGION A
What is a PORT Lateral mark?
Color: Red
Shape: Can, Pillar or Spar
Topmark: Single red can
Light: Red flashing light any rhythm other than composite group flashing (2+1)
Retroreflector: Red band or square
REGION B
What is a STBD Lateral mark?
Color: Red
Shape: Conical, Pillar or Spar
Topmark: Single red cone pointing upwards
Light: Red flashing light any rhythm other than composite group flashing (2+1)
Retroreflector: Red band or triangle
REGION B
What is a Port Lateral mark?
Color: Green
Shape: Can, Pillar or Spar
Topmark: Single green can
Light: Green flashing light any rhythm other than composite group flashing (2+1)
Retroreflector: Green band or square
REGION A
What is Preferred channel to starboard mark?
Color: Red Green Red
Shape: Can, Pillar or Spar
Topmark (when fitted): Single red can
Light: Fl(2+1)R
Retroreflector: Red band or square
REGION A
What is Preferred channel to port mark?
Color: Green Red Green
Shape: Cone, Pillar or Spar
Topmark (when fitted): Single green cone pointing upwards
Light: Fl(2+1)G
Retroreflector: Green band or triangle
REGION B
What is Preferred channel to starboard mark?
Color: Green Red Green
Shape: Can, Pillar or Spar
Topmark (when fitted): Single green can
Light: Fl(2+1)G
Retroreflector: Green band or square
REGION B
What is Preferred channel to port mark?
Color: Red Green Red
Shape: Cone, Pillar or Spar
Topmark (when fitted): Single red cone pointing upwards
Light: Fl(2+1)R
Retroreflector: Red band or triangle
What is a Special mark?
Indicates a special area or feature
C - Cables or pipelines
R - Recreation zones
O - ODAS Bouys
F - Function (channel within a channel) Fight (Military exercise zone)
T - TSS (where use of conventional channel marking may cause confusion)
S - Spoil grounds
Colour: Yellow
Shape: Can, Cone, Sphere, Pillar or Spar
Topmark: Yellow X
Light: Yellow, any sequence that can’t be confused with a white light in the vicinity - ODAS (5)20s
Retroreflector: Yellow
Depending on shape I would left on the correct side going with direction of bouyage, I would consult the chart for more information.
What is an Emergency wreck marking bouy?
Color: Equal Yellow blue stripes (min 4 max 8)
Shape: Pillar or Spar
Light: Alternating occulting yellow & Blue
Could be fitted with AIS & Racon (Morse “D)
Topmark: Standing Yellow cross
I would stop the vessel, inform the master, consult the chart & NAVTEX and APEM to safety
What is an ODAS Bouy?
(Special mark)
Ocean Data Acquisition System
May be as much as 12m in diameter and 2-3m in height
Yellow light (5)20s
To be given wide berth of 1 mile, 2.5 miles by vessels towing underwater gears.
What is a racon?
Radar transponder beacon
Helps identifying and locate navigational aids on the radar display
eg. bouys
How long would an emergency wreck mark stay in position? (3)
- The wreck is well known and has been noted in nautical publications
- The wreck has been fully surveyed and exact details such as position and least depth above the wreck is known
- A permanent form of marking of the wreck has been carried out
