Anchoring
At some point in your boating career
you will probably want to anchor. You may want to stop and fish, swim, have
lunch or stay overnight. A second reason to drop anchor may be to control the
boat if bad weather is blowing you ashore or if your engine has quit and the
wind and current are pushing you into shore or other boats.
The
first step in anchoring is to select the proper anchor. In spite of claims to
the contrary there is no single anchor design that is best in all conditions. On
most pleasure boats the three anchors you will find most are the fluke or
danforth type, the plow and the mushroom anchor.
Anchors also must have something to
attach them to the boat. This is called the anchor rode and may consist of line,
chain or a combination of both. The whole system of gear including anchor, rode,
shackles etc. is called ground tackle.
The amount of rode that you have out
(scope) when at anchor depends generally on water depth and weather conditions.
The deeper the water and the more severe the weather the more rode you will put
out. For recreational boaters let it suffice to say that at a minimum you should
have out five to eight times (5 to 1 scope for day anchoring and 6 to 8 to 1 for
overnight) the depth of the water plus the distance from the water to where the
anchor will attach to the bow. For example, if you measure water depth and it
shows four feet and it is three feet from the top of the water to your bow cleat
you would multiply seven feet by six to eight to get the amount of rode to put
out.
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STEPS TO SMOOTH ANCHORING |
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- Select an area that offers maximum
shelter from wind, current, boat traffic etc.
- Pick a spot with swinging room in
all directions. Should the wind change, your boat will swing bow to the wind
or current, whichever is stronger.
- Determine depth and bottom
conditions and calculate the amount of rode you will put out.
- If other boats are anchored in the
area you select, ask the boat adjacent to the spot you select what scope
they have out so that you can anchor in such a manner that you will not bump
into the neighboring vessel.
- Anchor with the same method used by
nearby boats. If they are anchored bow and stern, you should too. If they
are anchored with a single anchor from the bow, do not anchor bow and stern.
- Rig the anchor and rode. Check
shackles to make sure they are secured with wire tied to prevent the screw
shaft from opening.
- Lay out the amount of rode you will
need on deck in such a manner it will follow the anchor into the water
smoothly without tangling.
- Cleat off the anchor line at the
point you want it to stop. (Don’t forget or you’ll be diving for your
anchor.)
- With the bow to the wind or current
in the spot you have selected, stop the boat and slowly start to motor back.
Lower the anchor until it lies on the bottom then slowly let out the rode as
the boat drifts back. Backing down slowly will assure that the chain will
not foul the anchor and prevent it from digging into the bottom.
- When all the anchor line has been
let out, back down on the anchor with engine in idle reverse to help set the
anchor. (Be careful not to get the anchor line caught in your prop)
- While reversing on a set anchor,
keep a hand on the anchor line, a dragging anchor will telegraph itself as
it bumps along the bottom. An anchor that is set will not shake the line.
- When the anchor is firmly set look
around for reference points in relation to the boat. You can sight over your
compass to get the bearing of two different fixed points (house, rock,
tower, etc. ) Over the next hour or so, make sure those reference points are
in the same place. If not you’re probably dragging anchor.
- Begin anchor watch. Everyone should
check occasionally to make sure you’re not drifting.
- Retrieve the anchor by pulling or
powering forward slowly until the anchor rode hangs vertically at the bow.
Cleat the line as the boat moves slowly past the vertical. This will use the
weight of the boat to free the anchor and protect you from being dragged
over the bow. Once free, raise the anchor to the waterline. Clean if
necessary and let the rode dry before stowing away.
Click
HERE
for navigation lights animation and quiz, also Rules of the road animation
and quiz.
Click OPEN to start programme when it comes up
on the screen. Please note some of the buoyage system may be different as
its an American programme
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http://www.medway-cruiser.co.uk |