NAVIGATION TRAINING Section 7 Buoyage

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NAVIGATION TRAINING Section 7 Buoyage
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Table of Contents

• Section 1 Types of Navigation
• Section 2 Terrestial Coordinates
• Section 3 Charts
• Section 4 Compass
• Section 5 Nautical Publications
• Section 6 Navigational Aids
• Section 7 Buoyage
• Section 8 Position Lines and Fixes
• Section 9 Tides
• Section 10 Currents
• Section 11 Weather

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Buoyage
Caution Navigation buoys are not accurate
navigation points, as they are pushed in the
direction of the tidal flow The lower the
height (rise) of tide the more the buoy itself
can move away from the charted position.
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Buoyage
Buoy in Fog What action do you take seeing this?
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Buoyage

• Cardinal System of Buoyage
• Uniform Cardinal System of Buoyage
• Method
• Indicate the approximate true bearing of safe
  water from the danger it marks.
• Uses
• Mark offshore rocks, shoals, and islets.
• Mark dangers in and near the open sea.

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Buoyage
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Buoyage

• Lateral Systems
• In Canada we use Lateral System ? IALA B
• Red buoys mark the starboard (right) side of
  channels (Red Right Return) When returning from
  seaward
• Green buoys mark the port (left) side of channels
  

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Buoyage
Lateral Systems Direction Of Buoyage - is that
taken when approaching a harbour from seaward or
along coasts, the direction determined by buoyage
authorities, normally clockwise around land
masses. Chart symbol showing direction of
buoyage where not obvious
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Buoyage
Characteristics Port Hand Starboard Hand Safe Water Preferred Channel
Colour Green Red Red/White vertical stripes Green/Red horizontal bands
Shape Can or combination Nun or Combination Sphere or combination Can, Nun or combination
Markings Odd numbers Even numbers May be lettered May be lettered
Light characteristics Any except Gp. FL (21) Any except Gp. FL (21) Mo. (A), Iso, Occ, L.ft. 10s Gp. Fl. (21)
Light colour Green Red White Red or Green
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Buoyage
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Buoyage
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Buoyage
Bifurcation Channel Buoys
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Buoyage
Whats This?
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Buoyage
Channel Markers
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Buoyage
Special Marker Buoys