Photos of Anchors Setting

[a64pilot]

I think only the little cheap Zeuss has a built in sounder, you may need another box.
However I think they are all Airmar X-ducers, just maybe relabeled and have different connectors.
Since I have a solid hull and did not want another hole in the boat I went with the shoot thru the hull X-ducer. Child's play to install, I use anti freeze and water mix since I will always have that one the boat.
I assume that there is some performance degradation from shooting thru the hull, but not enough for my untrained eye to see.

Last boat I had a shoot thru the hull with my Garmin, and a Raymarine Dragonfly, the Dragonfly was unbelievable, it actually looked like a sepia photo of the shipwreck we were going to Dive.
However any wave action would show too of course so you only got a perfect picture in dead calm water.
For a gadget guy, you maybe ought to look at a side scan/ down scan CHIRP bottom machine, the picture has to be seen to be believed.
However I think they take a foot long or so X-ducer. Mine was transom mounted.
I am certain they are available for the Zeus, just don't know which ones.

[downunder]

Quote:
Originally Posted by estarzinger
"Photo will probably be making the anchor thread rounds.

Attachment 149533"


Quote:
by A64pilot
Re: Photos of Anchors Setting
________________________________________
“Looks, bent, then broken.
Depending on heat treat level of course the metal is more or less malleable.
Bent anchors don't bother me, anything can be destroyed with enough force, however failure mode is a concern. I'd much rather see bent, than broken. Likely bent may still hold.”

That’s clearly a break if you zoom the picture in, definitely not a bend. No doubt some bending force was applied and it just tore/broke.

Whilst I certainly like the way the Mantus sets versus the other rollbar anchors but it appears to have some strength issues that are being uncovered over time that give me some reservations.. Clearly a weak point.

If you look at the bent up Manson shot supplied by Nolex you can see the tip is also bent but not broken. Who knows what type of forces have been applied to this Manson to get it into that state.. Despite its bent up state it is still intact. This shows that the certification process the Manson and other anchors go through have some value.

There are other NG anchor designs out there where this type of break would be impossible. This is a disappointing development.

[groundtackle]

Along with Anchor Right (makers of the Excel and Sarca), we also work very hard to insure that we manufacture a high quality, high performance product. I am confident that the same holds true with the other brands, particularly those who have gone through the expensive process of achieving certifications through one or more classification society (ABS, DNV GL, Lloyd's, etc).
Safe anchoring,
Brian[/QUOTE]

Thanks for acknowledging Anchor Right's efforts Brian. Fortress set the bar high for all of us to follow. These certifications identify weakness.
Noelex, you use one of these. Any thoughts or concerns with that pic?
ce

[downunder]

Not sure what has happened?

Nolex recently posted the image of a Delta or similar anchor showing how the shackle and the toe buried together and it seems to have disappeared??

Any body notice. ?? Perhaps I am seeing things.

[groundtackle]

Originally Posted by downunder

Not sure what has happened?

Nolex recently posted the image of a Delta or similar anchor showing how the shackle and the toe buried together and it seems to have disappeared??

Any body notice. ?? Perhaps I am seeing things.

Stainless shackles on swivels post#61, that might be the image. So much info, I get confused all the time.
ce

[downunder]

Originally Posted by groundtackle

Stainless shackles on swivels post#61, that might be the image. So much info, I get confused all the time.
ce

GT no that's not it. Thanks Was an interesting shot of a plough.

[Factor]

Originally Posted by downunder

Not sure what has happened?

Nolex recently posted the image of a Delta or similar anchor showing how the shackle and the toe buried together and it seems to have disappeared??

Any body notice. ?? Perhaps I am seeing things.

Nope Downunder - you are not seeing things, I saw that post/photo as well, now it is gone? Wonder why?

[Uncle Bob]

Originally Posted by Factor

Nope Downunder - you are not seeing things, I saw that post/photo as well, now it is gone? Wonder why?

You'r not suggesting that the photo didn't fit the narrative now are you?

[sanibel sailor]

just look back thru old posts, there are only 2700+

[noelex 77]

Originally Posted by downunder

Not sure what has happened?

Nolex recently posted the image of a Delta or similar anchor showing how the shackle and the toe buried together and it seems to have disappeared??

Any body notice. ?? Perhaps I am seeing things.

Originally Posted by Factor

Nope Downunder - you are not seeing things, I saw that post/photo as well, now it is gone? Wonder why?

Originally Posted by Uncle Bob

You'r not suggesting that the photo didn't fit the narrative now are you?

Anchor threads seem to breed conspiracy theories .

I think people are refering to Post #61 on the following thread:

http://www.cruisersforum.com/forums/...ml#post2411802

No posts have been deleted, but I think I originally posted this image:



As this image was a bit grainy i substituted it a few minutes later with this photo:



The second photo shows exactly the same thing, with the same type of anchor. They both illustrate the point I was trying to make. The edit was only to substitute a better quality photo.

[downunder]

A bit more on the Torn Mantus Tip

Looking closely at the tip of the Mantus one can see where the tear of the toe occurs along the weld line. This could not happen with many other designs. Definitely not with the Spade Tip also shown.

I have seen bent tips before but not torn. This is definitely a design issue. Mantus being a good reactive company will consider upgrading their design I suspect.

[malbert73]

Right though you could pay for spare mantus for less than price of spade....


Sent from my iPhone using Cruisers Sailing Forum

[a64pilot]

Two plates welded together, if you apply excessive force to the end where they are welded together, then the weak point will be the line where they join.
In other words it's possibly not a design weakness, it's possible it's just a matter of exceeding design loads.
Or it is possibly a design weakness. Not being the designer and having no idea of design loads I can't say.


However if one one anchor has had this failure, If I manufactured it, I'd ignore it as an outlier.
If it is a design weakness, I'd suspect we would see many more failures, like apparently what happened to Rocna with I guess their change on metal spec?

[sanibel sailor]

My brother, an architect, likes to point out that something cannot be designed to withstand every possible force placed on it, (eg skyscrapers are not built to withstand full loaded jetliners crashing into them) but is designed to handle loads in reasonably expected situations. Since those situations are difficult to quantify and the loads involved all call for a number of estimations, a safety factor is added.

I doubt any manufacturer would call an anchor indestructible. Nor would I expect to see a redesign based on one failure (technically a yield and partial failure I believe.) Just identifies where the weakest part is. And it looks to me like not too bad of a spot to have a problem as the bulk of the anchor will probably be able to continue functioning, although at reduced efficiency.

[downunder]

Originally Posted by malbert73

Right though you could pay for spare mantus for less than price of spade....


Sent from my iPhone using Cruisers Sailing Forum

Definitely one of Mantus's advantages. I also like that they can be dismantled for storage as a spare anchor.

An advantage also of the Fortress and aluminum Sarca Excel.