Happy Holidays group! We're upgrading our Santorin and currently looking for a new anchor. After considering a Rocna (and making a cardboard prototype) we listened to the resetting problems, so now we're thinking about a ultra marine anchor. Anyone here who has experience with this anchor and/or has information on the right sizing for a Santorin? Thanks in advance,
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Martijn
SV Silvi

SN 090

We’ve carried a 25kg Rocna for 8 years. Fits fine on our Santorin and only dragged once. That was totally my fault rushing to get off the boat to meet someone!
Not a recommendation just a reflection!

Ian
Ocean Hobo SN96

Martijn,

There are many excellent anchors on the market these days, and I would include both Rocna and Ultra among these.

The downside of the Ultra is that it is only available in Stainless steel.  The cost of a stainless anchor has always thrown them off  consideration for any boat of mine. A stainless anchor certainly looks nice, but the material has no other advantages over quality galvanized steel. If the appearance of a shiner piece of boat jewelry on the bow of your boat is important, then by all means go ahead.   But I find that people frequently buy smaller stainless anchors because of the cost, and that would be a bad decision.

This is really the only technical fault I find with Ultra anchors.  To avoid price shock, the sizing recommendations they make for anchors is just too small for a cruising boat that needs to be self-sufficient in any conditions that come to them.  My thoughts on this issue are here:  https://fetchinketch.net/boat_thoughts/how-to-size-an-anchor/

Bill Kinney
SM160, Harmonie
Terre-de-Haut, Guadeloupe 
http://www.cruisingconsulting.com

Hi Martijn, I have recently used an Ultra on a Beneteau 46 in the USVI and Rhode Island and can report that it worked as expected. Easy to deploy and recover and quick to set. I did not have any reset situations, but I think it would reset like most modern generation anchors. I can’t speak to fit. There’s a great YouTube channel on anchors- SV Panope. https://youtube.com/@flygoodwin

Good Luck,
Mort Orlov

Hi Martijn,

we have a Rocna 33 on our Santorin, never slipped.  With a very simple modification (2 steel plates and a roll, see attached picture) it fits perfect. I just mounted the plates at the existing screws.

fair winds, herbert
KALI MERA, SN120, Mexiko

We have used both a Rocna and our current Ultra. Both are fine anchors, and I would say, roughly equivalent. If you choose the pricier Ultra, I recommend a sacrificial anode attached to the chain, very close to the anchor (if galvanized), as the Zinc coating on the chain will behave as a sacrificial anode and strip itself from the chain. An appropriate shaft Zinc works fine. 

Good info here. Thanks all! 

@Matt: Do you know what size Ultra is best for the Santorin?

@Herbert With our cardboard prototype we concluded the 33 Rocna is not a perfect fit. I thought about removing some fibreglass but this is a nicer solution to use that extra weight of the 33. Thanks.
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Martijn
SV Silvi

SN 090

I’m sorry, I don’t have size and weight data of your Santorin.

i would go one size up from the anchor manufacturer’s recommendation.

there Ultra is a great anchorage, but my research tells me the Spade is also very good.  

Thanks. I didn't mean the weight. I would like to know which Ultra fits in the front of the boat. I'm currently not at the boat and can't make another cardboard prototype.
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Martijn
SV Silvi

SN 090