Photos of Anchors Setting

[Dockhead]

Originally Posted by Fortress

We do. Our shanks are thickened and heightened from the shackle end of the shank up to the crown (center piece). In a sense, it resembles an airplane wing.

As an example, the shank of FX-37 model starts out at the shackle end with .5" thickness and ends at 1". The height starts out at 2" and ends at 4".

The shank is also tapered on both sides to give it a knife-like effect when penetrating into a sea bottom, and to improve structural strength and load disbursement.

I think I mentioned already, but will say again, that the Fortress shanks are very beautiful objects. They are not only cleverly designed as this post above shows, but they are beautifully made and finished, on a different level from the agricultural quality of most boat anchors.

Brian, are they forged or cast? They look forged to me.

[kas_1611]

Originally Posted by Dockhead

I think I mentioned already, but will say again, that the Fortress shanks are very beautiful objects. They are not only cleverly designed as this post above shows, but they are beautifully made and finished, on a different level from the agricultural quality of most boat anchors.

Brian, are they forged or cast? They look forged to me.

Have to agree with you there Dockhead. The Fortress anchor does look a thing of beauty and is very well engineered piece of kit.

Personally I think my Vulcan looks very nice on the front of my boat but then I am biased

[Fortress]

Originally Posted by Dockhead

I think I mentioned already, but will say again, that the Fortress shanks are very beautiful objects. They are not only cleverly designed as this post above shows, but they are beautifully made and finished, on a different level from the agricultural quality of most boat anchors.

Brian, are they forged or cast? They look forged to me.

Dockhead, thanks for your very kind words. Our shanks and all of our anchor parts are from extruded aluminum-alloy profiles and then they are machined to specifications.

Originally Posted by kas_1611

Have to agree with you there Dockhead. The Fortress anchor does look a thing of beauty and is very well engineered piece of kit.

Much appreciated, once more!

[malbert73]

Nice thing about spade fortress and mantus is you could purchase a spare shank if going afar. I plan to do so if I end up going where I can't get quick shipping. Seems like cheap insurance


Sent from my iPhone using Cruisers Sailing Forum

[noelex 77]

Originally Posted by kas_1611

Personally I think my Vulcan looks very nice on the front of my boat but then I am biased

The Vulcan is quite new. For those that have not seen the complex shank profile, this photo should help:

[Dockhead]

Originally Posted by noelex 77

The Vulcan is quite new. For those that have not seen the complex shank profile, this photo should help:

That looks really nice! Far cry from the agricultural roughly water-cut plate shank of my old 55kg Rocna.

[Dockhead]

Originally Posted by Fortress

. . . . Our shanks and all of our anchor parts are from extruded aluminum-alloy profiles and then they are machined to specifications.

So they are machined from billet? Nice . . . . . . . Very nice.


I guess an anchor doesn't NEED to be pretty. But who will object when it is?

[noelex 77]

This is an Ultra anchor cut in half showing the inside of the shank. You can see the convex external profile and the internal reinforcement that I think was not present on the early models.



When the Ultra is finished it is thing of beauty. Perhaps too good to drop into the deep :

[skipgundlach]

That's simply gorgeous! The knife edge would do an even worse number on the roller, but it certainly should be strong.

[sanibel sailor]

Originally Posted by Fortress

We do. Our shanks are thickened and heightened from the shackle end of the shank up to the crown (center piece). In a sense, it resembles an airplane wing.

As an example, the shank of FX-37 model starts out at the shackle end with .5" thickness and ends at 1". The height starts out at 2" and ends at 4".

The shank is also tapered on both sides to give it a knife-like effect when penetrating into a sea bottom, and to improve structural strength and load disbursement.

It is indeed a thing of beauty. I love my Fortresses.

[SVNeko]

That internal stiffener on the Ultra looks like it is just tack welded here and there along its length. I wonder how they attach it to both sides of the shank.

[kas_1611]

Originally Posted by SVNeko

That internal stiffener on the Ultra looks like it is just tack welded here and there along its length. I wonder how they attach it to both sides of the shank.

My guess would be there is an internal stiffener along the inside of both halves rather than a single "beam" joined to both sides.

[Panope]

Internal stiffener could be a single piece, attached with rosette welds to the second fluke half (just guessing as I have no Ultra anchor knowledge).

Steve

[estarzinger]

Photo will probably be making the anchor thread rounds.

[noelex 77]

Thanks Estarzinger

I think it is good to share photos of bent anchors. They are not common, but by sharing the images we can have a better idea if a particular model has a problem.

Personally, I have seen more bent flukes than bent shanks, but for some reason fluke strength receives very little attention.

Any idea how this happened?