planning anchorage
TRANSCRIPT
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PLANNING ANPLANNING AN
ANCHORAGEANCHORAGE
Grunt Productions 2007
A Brief By Lance GrindleyA Brie
f By Lance Grindley
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PLANNING ANPLANNING AN
ANCHORAGEANCHORAGE
References:
Any Seamanship Book
GONS Gidelines
E!perienceSailin" #irec$ions
%ariners hand&ook
Por$ Informa$ion GidesGrunt Productions 2007
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OBJECTIVEOBJECTIVE
SS
State the reasons for planning anState the reasons for planning an
anchorageanchorage
Explain the factors to be consideredExplain the factors to be considered Make basic calculations requiredMake basic calculations required
Prepare a simple anchorage planPrepare a simple anchorage plan
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WHY SHOULD WE PLAN?WHY SHOULD WE PLAN?
Anchor close to finalAnchor close to final
destinationdestination
Anchor where legal/allowedAnchor where legal/allowed Avoid dangersAvoid dangers
Anchor in a known spaceAnchor in a known space
Room to swingRoom to swing
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HOW DO WE PLAN?HOW DO WE PLAN?
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FACTORS TO CONSIDERFACTORS TO CONSIDER
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of !aterepth of !ater
Depth of Water Draught
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
DraughtDepth of Water
Height of Tide
Draught
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Limiting Danger LineLimiting Danger Line
(LDL(LDL
## $ raught % Safet# $ raught % Safet&
' Min (eight' Min (eight)f "ide)f "ide
e.g. Draught 6.7m + 2m Safety - 1m H O T = 7.7m
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ANCHORAGE PLANANCHORAGE PLAN
Coasti!e
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ANCHORAGE PLANANCHORAGE PLAN
Coasti!e2.1
"."6.7
#.$6.7
$.$
#.%
2.$$."
&.6
6.7
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ANCHORAGE PLANANCHORAGE PLAN
Coasti!e2.1
"."6.7
#.$6.7
$.$
#.%
2.$$."
&.6
6.7
'D'
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
As close to land as safet&As close to land as safet&
allowsallows
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
As close to land as safet&As close to land as safet&
allowsallows
Safet& Swinging *ircleSafet& Swinging *ircle
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SAFETY SWIN!IN! CIRCLESAFETY SWIN!IN! CIRCLE
SS* $ #ength of Ship % "otalSS* $ #ength of Ship % "otal
length oflength of
cable % Safet&cable % Safet&
marginmargin
Safet& usuall& + *able ,-.. &ardsSafet& usuall& + *able ,-.. &ards
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ANCHORAGE PLANANCHORAGE PLAN
Safety S(i!gi!g Cir)e
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
As close to land as safet&As close to land as safet&
allowsallows
Swinging *ircleSwinging *ircle
(olding 0round(olding 0round
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
As close to land as safet&As close to land as safet&
allowsallows
Swinging *ircleSwinging *ircle
(olding 0round(olding 0round
1avigation Marks1avigation Marks
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Coasti!e2.1
"."6.7
#.$6.7
$.$
#.%
2.$$."
&.6
6.7
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ANCHORAGE PLANANCHORAGE PLAN
Safety S(i!gi!g Cir)e
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AmountAmount $ +2$ +2√√ epth inepth in
MetresMetres
in Shacklesin Shackles $ -$ -√√ epth inepth in
3athoms3athoms
A"OUNT OF CABLE TO USE A"OUNT OF CABLE TO USE
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FACTORS TO CONSIDERFACTORS TO CONSIDER
raught of Shipraught of Ship
epth of waterepth of water
"ide rise/fall"ide rise/fall
As close to land as safet&As close to land as safet&
allowsallows
Swinging *ircleSwinging *ircle
(olding 0round(olding 0round
1avigation Marks1avigation Marks
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ANCHORAGE PLANANCHORAGE PLAN
Coasti!e2.1
"."6.7
#.$6.7
$.$
#.%
2.$$."
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ANCHORAGE PLANANCHORAGE PLAN
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Safety S(i!gi!g Cir)e
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