ROCNA anchor


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Geir Ove Bø
Geir Ove Bø
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Yes.  Spade is a good anchor. along with Rockna, Manson ++. 
Dick
Dick
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Geir Ove Bø - 8/3/2020
We where 2 cats on that 20 kg anchor,  so more like 15 tons,  when we dragged,  and we do use chain al the way. there where high seaweed and a hard botum under. and when i did dig in the anchor i did not know i was going to have one more cat hanging on me. :)  the 33 kg is a good nigth sleep,  and we have 75m , 10mm chain also. and sometimes it takes some force to get it back out again,  but thats ok.


Hi Geir,
Between the added weight of the extra boat and the high seaweed/hard bottom you describe, your Rocna dragging makes more sense.
One of the reasons I like the Spade anchor, which you are likely aware from your Spade stern anchor, is the large cache of lead concentrated in the tip. This, I believe, allows it to penetrate weed and grass more effectively than many other designs.
My best, Dick Stevenson, s/v Alchemy

Geir Ove Bø
Geir Ove Bø
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We where 2 cats on that 20 kg anchor,  so more like 15 tons,  when we dragged,  and we do use chain al the way. there where high seaweed and a hard botum under. and when i did dig in the anchor i did not know i was going to have one more cat hanging on me. :)  the 33 kg is a good nigth sleep,  and we have 75m , 10mm chain also. and sometimes it takes some force to get it back out again,  but thats ok.


Dick
Dick
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Geir Ove Bø - 8/2/2020
we had a 20kg rockna on our 8.4 ton cat.  and it did work fine but stronger winds. we did drag a few times,  so we went up to 33kg (biggest that will fit on our setup.
And on our trip to carib and back 16/17,  we only draged once, it was on deeper w, and buttum was very hard,  so mostly we did not get it to digg in.
Rockna has been good to us.. we sleep well with it digged in, and pulltested,  2 motors 2000rpm,  and even more if we know there will be havey winds/waves.
we also haVE A SPADE 15KG, TO USE ON THE BACK, if we go for a shorter stopp with the bows to the rocks, (norwergian style)

Hi Geir,
Thanks for the field report: always the best kind of information.
More weight in the anchor certainly, to my mind, is the best use of weight to promote good sleep habits. That said, I am surprised your 20kg Rocna dragged after setting. Is it possible that it was a scope issue? Especially if on a catamaran where the use of rope rather than chain is more common.
Or was there a wind shift or current change that might have contributed? I believe it to be fairly well established that Rocnas, on occasion, fail to re-set after being dislodged.
I can only imagine that a 33 kg Rocna has nailed you to the bottom (barring the above-mentioned wind shifts). I have the same weight anchor (SPADE) on my almost twice the weight cutter and most people consider that over-kill. But I sleep very well.
That said some of the Carib and Bahamas anchorages are like trying to anchor on a concrete landing pad: impossible to get the anchor in.
My best, Dick Stevenson, s/v Alchemy

Geir Ove Bø
Geir Ove Bø
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we had a 20kg rockna on our 8.4 ton cat.  and it did work fine but stronger winds. we did drag a few times,  so we went up to 33kg (biggest that will fit on our setup.
And on our trip to carib and back 16/17,  we only draged once, it was on deeper w, and buttum was very hard,  so mostly we did not get it to digg in.
Rockna has been good to us.. we sleep well with it digged in, and pulltested,  2 motors 2000rpm,  and even more if we know there will be havey winds/waves.
we also haVE A SPADE 15KG, TO USE ON THE BACK, if we go for a shorter stopp with the bows to the rocks, (norwergian style)
Dick
Dick
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Hi NeilM,
Yes, keep putting anchors on the bow till the “experts” on the marina docks and at the yacht club bar chuckle. Then you know you have nailed it. Weight in the anchor is weight more powerful in boat safety than weight put anywhere else. I have a 35kg Spade for my 40 foot boat. That said, anyone who says they have never dragged anchor has likely not anchored much.
Motoring astern in the way you describe has the added benefit of helping to clean the new generation anchors who often come up encumbered with embedded sea bottom.
My best, Dick Stevenson, s/v Alchemy
neilm
neilm
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Our 100 lb Manson Supreme often comes up facing the wrong way.
We turn it by motoring gently astern with the anchor dangling in the water
Much easier than muscle work
neilm
neilm
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There are only two weights of anchor
1) those that people laugh at as being overweight
2) those that drag

We have a 100 lb, say 45kg, Manson Supreme on our 47 footer, and feel it is right.
Dick
Dick
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Hi,
I am sorry you had trouble with your Rocna, but there are emerging reports about trouble re-setting. I am glad your difficulties do not sound like they led to damage. The other issue, needing to set at a very slow speed, is not one I have heard with respect to Rocnas too often, rather the opposite.
In any case, having been a Spade user for 6-8 yrs now, I suspect you will be happy with this choice.
On another note, the reports of Rocna’s difficulties re-setting (as have the videos) have existed for awhile, but seem not to have risen to the level of more public discussion nor has Rocna commented (to my knowledge). My more cynical side wonders whether we are seeing the journalists/magazines being loath to say anything bad about an advertiser. It seems to me worth exploring more publicly before there occurs damage to boat and/or crew.
Safe anchoring, Dick Stevenson, s/v Alchemy
starke
starke
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I also had trouble with Rocna resetting after a tide current change, and find it hard in initial set unless speed is very slow, usually under 1.5 knots. I sold my Rocna and am very happy with a new Spade anchor.
GO

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