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posted to rec.boats.cruising
Mic
 
Posts: n/a
Default Demonstration footage of boat anchors

On Sat, 27 May 2006 21:05:46 -0700, Stephen Trapani
wrote:

wrote:

I am not advocating any particular anchor, I thought the footage of
this test maybe of interest.



I do believe that any anchors performance can be enhanced with the use
of a kellet or Anchor Catenary.

A kellet serves more than one purpose:
#
Increase anchoring security and reduce the risk of the anchor dragging
by changing the angle of pull on the anchor to help it dig in
#
Reduce boat swing by up to 50%
They almost double the holding power of the anchor and reduce the
working load of the anchor by up to 50%.
"Having a lot of sag in the rode reduces shock loads and helps keep
the anchor dug in by reducing the angle between the rode and anchor.
The best you can do is an angle of "zero", which exists when the
anchor rode is flat on the bottom, and all the pulling forces are
horizontal. As tension increases, it reaches a point where the weight
of the rode is overcome, and the angle becomes positive. Positive
angles make the anchor work harder at keeping set, since the rode is
now pulling up on the anchor. If the tension continues to increase,
the catenary reduces to a straight line, and eventually the anchor
pulls out."

It is clear that some people respond to these informational posts from
links that havent read the material much less understood it.



Mic, please tell us something about you recent anchoring experiences,
e.g., type of boat you own, type of anchor/rode, bottom conditions,
weather, etc.


Knowledge is not made more true or false based upon the experience of
the person who holds it. For one thing, the person could have gotten the
knowledge from a very experienced person (as much of the links Mic posts
clearly are), for another, experience doesn't prevent anyone from being
wrong about anything, for another, theories should be judged upon their
adherence to the canons of rationality, not upon who they come from.


Well said and understood.

Heres and interesting thought.

2 lawyers in a civil matter both have the same number of years
experience, no agreement on the statue can be made. What percentage
does each lawyer have of being correct as decided by the court? 50-50
right? Or less than 50% chance of being right but still the same %
chance of being right accorded to each lawyer? If you have any
experience then you should have the answer;

I would say that for the most part I would concur with that which is
in many of the sailing informational links. Or provide the links as
something new or different, as it appears that these interests are in
common with others, with an exception it seems. Thats OK.



--
Stephen

-------

For any proposition there is always some sufficiently narrow
interpretation of its terms, such that it turns out true, and
some sufficiently wide interpretation such that it turns out
false...concept stretching will refute *any* statement, and will
leave no true statement whatsoever.
-- Imre Lakatos