NAVIGATION TRAINING Section 7 Buoyage Table of Contents
NAVIGATION TRAINING Section 7 Buoyage
Table of Contents • Section 1 • Section 2 • Section 3 • Section 4 • Section 5 • Section 6 • Section 7 • Section 8 • Section 9 • Section 10 • Section 11 Types of Navigation Terrestial Coordinates Charts Compass Nautical Publications Navigational Aids Buoyage Position Lines and Fixes Tides Currents Weather
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.
Buoyage Buoy in Fog What action do you take seeing this?
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.
Buoyage
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
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
Buoyage Characteristics Port Hand Starboard Hand Safe Water Preferred Channel Colour Green 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 Light characteristics Any [except Gp. FL (2+1)] Mo. (A), Iso, Occ, L. ft. 10 s Gp. Fl. (2+1) Light colour Green Red White Red or Green
Buoyage
Buoyage Port Channel Buoy Starboard Channel Buoy
Buoyage Bifurcation Channel Buoys
Buoyage What’s This?
Buoyage Channel Markers
Buoyage Special Marker Buoys
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