Anchors Seen in Boatyards

[ranger58sb]

Most of the boats in our marina -- all power -- are shrink-wrapped for the winter now... but from memory it's mostly a selection of Deltas (maybe 60+%) and Danforth-style which would include a scattering of Fortresses (maybe 30+% total)... and a few other odds and ends. Maybe one Rocna; can't quite remember. These would all be on single rollers.


Except for the Fleming fleet. I think all have double rollers, and their anchors are mostly a selection of Ultras and Fortresses.


-Chris

[double u]

Originally Posted by CheekyMonkey

Anchors are the source of idle minds...you may want to find another hobby.

yeah, like rudder/keelrepairs of grounding-damage due to dragging anchors...

[noelex 77]

Some more interesting anchors that were seen in the boatyard recently.

First a Kobra. This anchor had the largest hole drilled in the shank that I have ever seen. From the amount of corrosion on the hole it seems it was drilled some time ago and the anchor was far from new.

The Kobra shank is not one of the strongest around, but interestingly despite the large loss of material the shank was still straight.

Please don't do this to your anchor.

[noelex 77]

This was a bent Delta.

Anchor threads often discuss shank strength, but there is almost no discussion about fluke strength. Personally, I have seen more anchors with bent flukes than bent shanks. So it is a mystery to me why fluke strength is so rarely discussed.

Most anchor designs that use high strength steels in the shank use simple mild steel in the fluke construction, so there is a potential to improve fluke strength without disrupting the weight balance.

[noelex 77]

This was another Delta.

It also had a bent fluke. The magnitude of the bend was less than the previous example but it was quite noticeably bent to the naked eye.

The picture was taken on my phone and are not very clear, but hopefully you can see the bend which was in the fluke and also the fluke/shank weld. Once again the shank itself is quite straight.

[Snowpetrel]

I wonder how many of the bent delta's are due to hitting wharfs and other hard objects vs real anchoring loads?

[UNCIVILIZED]

Seems like it's pretty common to bend Deltas. And their flukes are made from relatively thin plate. Which likely helps with their setting. And if you think about when they were introduced, everything else availabe was made out of much thicker materials, except Danforths. So this thinner pating may have been rationalized by enhancing penetration, & thus holding power, as compared to the competition of the time. Though as to why they'd not use a higher tensile steel for every part of the anchor, I couldn't say.

[Cotemar]

Originally Posted by Snowpetrel

I wonder how many of the bent delta's are due to hitting wharfs and other hard objects vs real anchoring loads?

I agree. We have seen a few docking errors bend the anchors like that delta.