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Old 09-14-2018, 08:57 AM   #14
Nomad Willy
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City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,743
Quote:
Originally Posted by makobuilders View Post
Some have made comments that a short, really heavy leader (say 8' or so) before the chain can interfere with the anchor digging and setting properly. I understand that Fortress in particular have their own characteristics, but for other burying anchors, I don't understand this statement.
Mako,
I assume leader means chain.
The big thing I learned from Sfteve’s video’s was that while setting anchor the tension on the fluke end/tip causes the anchor to pitch down putting downward pressure on the end of the shank. The chain holding the shank on the seafloor is typical but the downward force on the end of the shank was new to me. I had assumed before I saw a Claw shank dive down into the seabed that all tension on the rode caused the rode to rise and the anchor shank to be lifted UP. I assumed anchors tended to be pulled straight out with the shank lifted off the seafloor. Not so as evidenced by some of Steve’s vids. Apparently the tension on the rode causes the anchor to pitch down into the seafloor.

The XYZ anchor guy apparently realized that. The XYZ anchors have a small shank so he attached a 2-3’ length of cable to the anchor between the anchor shank and the chain. Since the chain was being pushed down into the seafloor substituting the cable made/makes it easier for the shank to dive into the seafloor. The cable causes far less resistance to penetration than the chain.
I’ve used a cable quite a bit but w/o a camera I have no idea what’s going on down there.

Anyway Mako this may be the mystery to the comments you have heard.
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North Western Washington State USA
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