Lateral navigation buoys
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Transcript Lateral navigation buoys
Lateral navigation buoys
Upstream direction: is the
direction taken by a vessel when
proceeding from seaward, toward
the headwaters of a river, into a
harbour or with the flood tide
Keep all solid green
buoys on your port (left)
side when moving in the
upstream direction.
Memory tip
-green on left, red on
right (match up the r’s)
Lateral navigation buoys
Keep all solid red
buoys on your
starboard (right) side
when moving in the
upstream direction.
Memory tip
-green on left, red on
right (match up the
r’s)
Bifurcation Buoys
You may pass buoys with red
and green bands on either
side in the upstream
direction. The main or
preferred channel is shown by
the colour of the top band.
For example, you should keep
the buoys pictured here on
your port (left) side.
Memory tip-more green- keep
on port side-More red- keep
on starboard side
Bifurcation Buoys
You may pass buoys with red
and green bands on either
side in the upstream
direction. The main or
preferred channel is shown by
the colour of the top band.
For example, you should keep
the buoys pictured here on
your starboard (right) side.
Memory tip-more green- keep
on port side-More red- keep
on starboard side
Fairway Buoys
You may pass these buoys
on either side, but when it
is marking the middle a
channel it should be kept
on your port (left) side.
Memory tip- white with
red- stay to the right
Cardinal Buoys
Cardinal buoys, marked in
yellow and black, show where
the deepest or safest water is.
The North, East, South and
West cardinal buoys are
distinguished by their colour
pattern, and by their top
marks.
Cardinal Buoys
The North cardinal buoy is
black on top and yellow on
bottom. The safe water lies to
the north of this buoy.
Memory tips
- Arrows point up for northdown for south
-North and south both only
two bands
-colours- think alphabetical
n/s b/y- ie. N before S just
like B before Y- whatever is on
top has the power
Cardinal Buoys
The South cardinal buoy is
yellow on top and black on
bottom. The safe water lies to
the south of this buoy.
Memory tips
- Arrows point down for south
-North and south both only
two bands
-colours- think reverse
alphabetical
s/n y/b- ie. S After N just like
Y after B- whatever on top has
power
Cardinal Buoys
The East cardinal buoy is black with
a yellow band. The safe water lies
to the east of this buoy.
Memory tips
-east and west have three bands
-alphabetical- b closer to e in
alphabet than y- therefore b is east
One on top has power
-arrows look like a printed e
Cardinal Buoys
The West cardinal buoy is
yellow with a black band. The
safe water lies to the west of
this buoy.
Memory tips
-east and west have three
bands
-alphabetical- Y closer to W in
alphabet than E- therefore Y is
West
One on top has power
-arrows have shape of one
half of W
Special Purpose Buoys-Anchorage
Buoys
Buoys with the anchor symbol
mark the perimeter of
designated anchorage areas.
Before anchoring, consult
your charts for water depths.
Memory tip- look for anchor
symbol
Special Purpose Buoys-Cautionary
Buoys
Yellow buoys mark danger areas,
such as military exercise areas,
underwater structures, race
courses, seaplane bases, or areas
where there is no through or safe
channel. Consult your charts for
details on the danger.
Memory tip- yellow means caution
Special Purpose Buoys-Mooring
Buoys
These buoys are used for
mooring or securing
vessels.
Memory tip
Red over white- stay for
the night
Special Purpose Buoys-Keep Out
Buoys
Buoys with this symbol mean
Keep Out. They mark areas
where boats are prohibited.
Memory tip- orange X- keep
out
Special Purpose Buoys-Control Buoys
Buoys with this symbol
indicate special rules,
such as speed limits or
wash restrictions. Obey
the restriction shown
inside the orange circle.
Memory tip- orange
circle = speed limit
Special Purpose Buoys-Information
Buoys
Buoys with this symbol
display information such
as locality, name, marina,
campsite, etc.
Memory tipSquare = nerd =
information
Isolated Danger Buoys
Diving
Code Flag A
This flag indicated, "I have a diver
down. Keep well clear at slow
speed." Collision Regulations
require that small vessels engaged
in diving operations must display a
rigid replica of this flag when
restricted in their ability to
manoeuvre.
Memory tip- arrow pointing into
the water- diver down
Diving
Diving Buoy Flag
This flag is required by Private
Buoy Regulations and
indicates areas where scuba
diving is in progress. Again,
stay well clear and proceed
with caution.
Memory tip- flag- diving- red
caution- white looks like
scuba tank??
Distress Flares
The Parachute flare is easily seen
from the surface or the air, and
burns at least 40 seconds.
Distress Flares
The "Multi-star" flare is also
easily seen from the surface
or the air. It burns four to five
seconds. (If a single star shell
is used, two shells should be
carried for every flare.)
Distress Flares
The hand held flare is less
easily seen from the
surface. (When using this
flare do not look at it
directly, and hold it
downwind and well clear
of the vessel.)
Distress Flares
The smoke flare is used as a day
distress signal only. It may not be
mandatory for your vessel.
All flares should be stored in a
watertight container, in a cool dry
location. Flares are valid for four
years from date of manufacture,
and should be disposed of after
that time.
Weather Warnings
Marine weather forecasts
include four types of severe
weather warnings: small craft,
gale, storm, and hurricane
force winds. The meanings of
these warnings are described
below.
Weather Warnings
Small Craft Warning
Winds 20-33 knots Wave Heights 2-3 metres
Weather Warnings
Gale Warning
Winds 34-47 knots Wave Heights 6-9 metres
Weather Warnings
Storm Warning
Winds 46–63 knots Wave Heights 9–16 metres
Weather Warnings
Hurricane Force Warning
Winds 64 knots and over Wave Heights over 16 metres
Hypothermia
Hypothermia - the loss of body
heat - is the greatest danger for
anyone in the water. As the body
loses its heat, body functions slow
down. This can quickly lead to
death.
There are three critical
areas where the body
loses heat most quickly:
the head and neck, the
sides of the chest, and the
groin region.
HELP
The Heat Escape Lessening Position
ê protects the critical body areas
and slows down the loss of heat.
Get into this position if you are
alone in the water.
If two or more people are in
the water together, form a
huddle so that the sides of
your bodies are close
together.
Standard Marine Distress Signals
Code Flags
N over C
Standard Marine Distress Signals
Distress Cloth
Standard Marine Distress Signals
Sound Signals
Continuous: Foghorn, bell, whistle.
1-minute intervals: Gun or any
explosive
Standard Marine Distress Signals
Flashlight
Arm Signal
Do not use near
helicopter (different
meaning)
Flame on Vessel
as from burning tar,
oil in barrel, etc.
Dye Marker
Hulls
A Planing Hull is designed to lift (or plane) onto the top of the
water as the boat gains speed. Most small powerboats utilize
planing type hulls
- A Displacement Hull is designed to travel through the water
using an efficient amount of propulsion. Larger vessels are typically
designed with displacement hulls because of their large size
and drafts
- A Pontoon Hull utilizes two or more pontoons to create lift and
flotation. Pontoon hulls typically have flat decks and may be fitted
with or without a cabin
Hulls cont.
Round-Bottom: Typical to sailboats,
round-bottom hulls are not as stable and
tend to roll in waves and rough water
conditions
- Flat-Bottom: Typical to some ski-boats
or smaller craft like rowboats, flat-bottom
hulls offer a more stable platform but
tend to “bounce” or “slap” the water in
rough conditions
- Vee-Bottom: The most common type
of power-boat hull, a vee-bottom hull is
shaped like a “v” and can cut through
rough water
- Multi-Chine Hull: Multi-hull craft, such
as catamarans, are very stable but can be
more difficult to manoeuvre
Bow
The forward part or front section of a pleasure craft is defined as
the bow.
Stern
The rearward part or rear section of a pleasure craft is defined as
the stern.
Transom
The stern cross-section of a boat. The transom forms the back of
the boat.
Draft
Draft is defined as the depth of water that a boat needs in order
to float freely. A boat’s draft is measured as the distance from
the vessel’s waterline to the lowest point of the hull. If a vessel
is equipped with an outboard motor or stern drive, the draft is
the distance from the waterline to the lowest point on the
engine.
Freeboard
Freeboard is considered to be the distance from the top
of the deck to the waterline.
Length
A boat’s length is defined as the distance from the tip of the bow
to the farthest point on the stern (measured in a straight line). If
the boat is equipped with a swim platform it is not considered as
part of the boat’s overall length.
Beam
A boat’s beam is defined as the width of a boat at its widest point.
http://www.tc.gc.ca/eng/marinesafety/debs-obs-operation-rules-menu-359.htm
http://boating.ncf.ca/rules.html
http://www.safeboater.com/studyguide.asp
http://www.safeboater.com/studyguide3-4.asp