Central Scotland Sea School Central Scotland Sea School Buoyage & Lights Buoyage and Lights
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Central Scotland Sea School
Central Scotland
Sea School
Buoyage & Lights
Buoyage and Lights
IALA SYSTEM OF BUOYAGE
IALA – International Association of Lighthouse Authorities
A
A
A
A
B
B B
In System A the Direction of Buoyage is Red to Port when entering harbour.
When the direction of buoyage is not obvious it is indicated by this symbol on the chart.
Round the UK the General Direction of Buoyage runs North up the coasts and East through the Channel
Point of Danger
Cardinal BuoysNorth Cardinal
West Cardinal East Cardinal
South Cardinal
Central Scotland
Sea School
Buoyage & Lights
North Cardinal
What you see
How it looks on the chart
Top Mark
2 Cones pointing up
Light
White flashing
Central Scotland
Sea School
Buoyage & Lights
Top Mark
2 Cones pointing down
What you seeHow it looks on
the chart
South Cardinal
Light
White flashing
6 + 1long flash
Central Scotland
Sea School
Buoyage & Lights
What you see How it looks on the chart
East CardinalLight
White flashing 3Top Mark
2 Cones pointing out
Central Scotland
Sea School
Buoyage & Lights
What you seeHow it looks on
the chart
West Cardinal
Light
White flashing 9
Top Mark
2 Cones pointing in
Central Scotland
Sea School
Buoyage & Lights
Lateral Marks
Central Scotland
Sea School
Buoyage & Lights
Direction of
Buoyage
What you see
How it looks on the chart
Light
Red flashing any rhythm except 2+1
Port Hand Lateral Mark
Top Mark
1 can shape
Central Scotland
Sea School
Buoyage & Lights
What you see
How it looks on the chart
Light
Green flashing any rhythm except 2+1
Starboard Hand Lateral Mark
Top Mark
1 conical shape
Central Scotland
Sea School
Buoyage & Lights
Preferred Channels
Central Scotland
Sea School
Buoyage & Lights
Light Red 2+1 Light Green 2+1
To Starboard To Port
Other Marks
Central Scotland
Sea School
Buoyage & Lights
Safe Water Mark Isolated Danger Mark
Special Mark
What you see
How it looks on the chart
Light White
Long Flash
Morse A
Occulting
Isophase
Safe Water Mark
Top Mark
1 Red Ball
Central Scotland
Sea School
Buoyage & Lights
What you see How it looks on the chart
Light
White flashing 2
Isolated Danger Mark
Top Mark
2 Black Balls
Central Scotland
Sea School
Buoyage & Lights
Light
Yellow flashing
Any rhythm
What you see How it looks on the chart
Special Mark
Top Mark
1 Yellow Cross
Central Scotland
Sea School
Buoyage & Lights
Emergency Wreck Marker
Central Scotland
Sea School
Buoyage & Lights
Light – Alternating Blue and Yellow
What you would see
BuY
How it looks on the chart
Top Mark
1 Yellow Vertical Cross
When lights are notated on the chart if no colour is indicated the light is white. Coloured lights are indicated by the initial letter of their colour following the abbreviation for the type of light. E.g. F.R means fixed red.
R – Red
G – Green
Y – Yellow
B - Blue
Central Scotland
Sea School
Buoyage & LightsAbbreviations for lights to be found
on charts.
F
Fl
Fixed light, lit all the time.
Flashing light, single flash every given number of seconds. E.g. Fl 2s means single flash every 2 seconds
Abbreviations for lights in use on charts
All examples are of white lights.
QContinuous quick white flash. VQ – very quick
Central Scotland
Sea School
Buoyage & Lights
L.Fl
Fl(2)
Long Flash, about 3 times as long as a flash. Again every given number of seconds. E.g. L.Fl 10s means a long flash every 10 seconds.
Group flashing, in this instance 2 flashes.
Central Scotland
Sea School
Buoyage & Lights
Abbreviations for lights in use on charts
Iso
Occ
Morse A
Isophase means equal periods of light and dark.
Occulting means the periods of light are longer than the periods of dark
Flashing the morse signal for the letter “A”
Central Scotland
Sea School
Buoyage & Lights
Abbreviations for lights in use on charts
Typical lighthouse characteristics
Fl.(3)10s 15m 12M
White flashing in groups of 3 every 10 seconds.
Height of light 15 metres, visible for 12 Miles
Central Scotland
Sea School
Buoyage & Lights
Related Documents
