anchor
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 371
Forum Description: 371 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=1332
Printed Date: 27 March 2026 at 01:44
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: anchor
Posted By: hull # 120
Subject: anchor
Date Posted: 07 June 2007 at 15:27
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I have been using a Delta on my 371. I already upgraded one size on my Delta from the anchor which was delivered by Hanse.
I am based in the Chesapeake Bay in the US. Bottom condition is mostly soft mud. I find the Delta not the easiest to set and I have dragged a few times after what I thought was a good set. Most of the times I have dragged related to a squall which came through with a change in wind direction and strong winds. The Delta does not seem to do a great job with resetting itself when you have a major change in wind direction.
I am going to try a different anchor. I have interest in an anchor out of New Zealand called a Rocna. I have pasted in below some anchor reviews from the Rocna website if anyone is interested. Was curious if anyone has used this anchor and if it fits in the Hanse 371 anchor roller. Also, if anyone has had success with something other than the Delta and also a good fit in the anchor roller,please let me know. Thanks. Jon
http://www.rocna.com/main.php?section=real&chapter=press&page=0&PHPSESSID=f02d8ee75509413ed9b4a43b2905c388 - http://www.rocna.com/main.php?section=real&chapter=press&page=0&PHPSESSID=f02d8ee75509413ed9b4a43b2905c388
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Replies:
Posted By: 371-#235
Date Posted: 07 June 2007 at 15:36
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Hi Jon,
I am very interested to find out how well the Rocna works both for holding and for fit on the bow roller. I've been looking at this anchor for a while and spent some time with them at the Annapolis boat show last fall.
Bob, 371-#235
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Posted By: Alex Faber
Date Posted: 10 June 2007 at 09:47
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Reports published in sailing magazines in Germany and Holland about tests with many different types of anchors (including Rocna) in different types of soil, show the Plastimo Kobra as the winner with the Fortress as runner up. But I can remember that the Rocna was one of the better performers. ------------- s/y eMotion (H430e #24) |
Posted By: Craig Smith
Date Posted: 10 June 2007 at 10:23
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Alex, to our knowledge there has been no testing of the Rocna yet in Europe. Without sounding arrogant, I would certainly not expect the Kobra, a Delta copy, to out-perform it. The only testing to date which compares the Rocna against others is last year's West Marine comparison series, as published in SAIL, Yachting Monthly, and Motor Boats Monthly. These are on our website as linked to by Jon above. These are West Marine's own comments:  ------------- Craig Smith affiliated with Rocna Anchors http://www.rocna.com/ - www.rocna.com |
Posted By: Alex Faber
Date Posted: 10 June 2007 at 18:10
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The "Rocna" was tested by the German magazine "Yacht" (the biggest sailing magazine in Europe) and the Dutch magazine "Waterkampioen". These were the tests I referred to. But the tests were off course published in German and Dutch. "Yachting Monthly" published a test of 14 different types of anchors, including the "Rocna", in their December 2006 issue. ------------- s/y eMotion (H430e #24) |
Posted By: jon mason
Date Posted: 14 June 2007 at 21:09
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Hi Guys,
I have just switched from a bruce to a Manson Supreme.
The new anchor sets easily , has never let go or slipped even in rough conditions. The bruce was rubbish in comparison.
The article in Yachting monthly showed the rocna and Manson to be similar, the Manson is easier to get hold of and a little cheaper. Highly recommeneded bit of kit for just over £200!!
Jon
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Posted By: Craig Smith
Date Posted: 15 June 2007 at 02:00
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The Manson's a copy of the Rocna - http://www.rocna.com/boat-anchors/manson-supreme-anchor.php - an article about the Supreme . ------------- Craig Smith affiliated with Rocna Anchors http://www.rocna.com/ - www.rocna.com |
Posted By: 371-#235
Date Posted: 13 August 2007 at 00:23
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Yes, but does anyone know how well the Rocna fits in the 371's anchor roller and whether the locking pin will engage it??
Bob, 371-#235
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Posted By: hull # 120
Date Posted: 13 August 2007 at 03:41
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Bob: I purchased the Rocna 20 for my 371 as replacement for a Delta. The Rocna fits on the roller, but it does not fit as cleanly as the Delta did. I think the Hanse roller was made for purposes of housing a Delta. The locking pin is not going to engage on the Rocna with our roller without modification to the roller, but I have an electric windlass and I have the anchor tight and snug on the roller. The Rocna sits slightly on an angle as well. Its shank catches the bottom of my roller furling drum on release so you have to guide it out somewhat. This did not happen with the Delta and this is also not a perfect scenario. All that being said, once in the water, it appears to be a far superior anchor to the Delta. I am getting pretty instant and strong sets, and unlike the Delta, which I could always retreive with the strengh of the windlass breaking it free, the Rocna requires some work to break it free, which appears to mean that it is well set. I have only had the anchor about 6 weeks and have only set it about a dozen times so far, but early readings are positive as to setting and holding power. I can provide more updates as I have more experiences with the anchor going foward if anyone is interested.
Jon
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Posted By: 371-#235
Date Posted: 13 August 2007 at 17:13
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Thanks Jon,
Please keep me posted as you go forward - I think a Rocna is in my future.
Bob
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Posted By: gshannon
Date Posted: 07 October 2007 at 22:51
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I replaced my original 15 kg Claw anchor with a Rocna this spring. My 371, hull number 092, has a pivoting anchor roller, and the Rocna fits fine, although I find it less attractive. But what a difference in performance!
The Rocna digs in RIGHT NOW and stops the boat in a positive fashion, whereas the Claw seemed to drag as long as the engine was in reverse. Proof that it holds better is that it is harder to break loose, and several times came up with a large chunk of bottom including clams and worms!
The only downside I found was that the anchor windlass (Lofrans factory installed) showed signs of movement which made me fear it might break loose. Inspection showed that it was bolted to a plywood shelf which is well glassed in, but there was no backing plate, just ordinary washers on the 4 mounting bolts, and the aftmost of these were sunk into the plywood allowing the windlass to rock. I found some huge thick SS washers (about 60mm diameter) and put them on all 4 bolts. Since then the mounting seems fine.
Just something we should probably all check! ------------- Grahame Tangleberry 371-092 aviadesign.com |
Posted By: Brightside
Date Posted: 08 October 2007 at 16:57
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Hi Grahame.
I have 371/106. What size Rocna (lbs or Kgs) did you buy? Can you post a photo of the Rocna sitting on the pivoting anchor roller? Does the retaining pin work? Ta Mike |
Posted By: 371-#235
Date Posted: 09 October 2007 at 03:15
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Brightside(Mike),
Your questions are exactly what I want to know. Graham pray tell what size ROCNA and a picture if you can.
Thanks,
Bob
371-#235
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Posted By: gshannon
Date Posted: 12 October 2007 at 01:54
It is a 15 KG Rocna. By the way, these are now made in Canada and available from http://www.suncoastmarine.ca - www.suncoastmarine.ca
------------- Grahame Tangleberry 371-092 aviadesign.com |
Posted By: hull # 120
Date Posted: 12 October 2007 at 15:07
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Just an update to my last posting in August on the issue of the Rocna. As I previously mentioned, I purchased the Rocna 20. As the season has progressed and I used the anchor more and more, I continue to be impressed with the performance of the anchor. In my opinion, it definately performs better than the Delta, at least in the soft mud that we have on the Chesapeake Bay. I may attempt to modify the roller somewhat over the winter to deal with the situation of the shank coming up and hitting the bottom of the roller furler as it deploys out. Grahme, are you having this issue with the 15?
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Posted By: Pea Soup Crew
Date Posted: 15 October 2007 at 21:48
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Hi,
I am just in the process of buying a 15KG Rocna for my 342, I will have to modify the bow roller arrangement somewhat. Looking forward to experiencing the extra holding power! I will keep the forum updated on performance. Peter ------------- Pea Soup Crew 342#395 |
Posted By: gshannon
Date Posted: 09 November 2007 at 22:59
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The 15 KG Rocna fits fine, but mine is an early 371 and has an articulated roller not found on newer ones. I do have to give the shank a kick sometimes to start it on its way down as it does hit the furling gear. But the old 15 kg Claw did exactly the same thing.
The bigger nuisance is the small size and shallow deptjh of the anchor locker, which causes the chain to pile up. I usually raise the anchor while lying on my stomache so I can reach down and clear the chain every 10 meters or so. Has anybody come up with a clever solution for this?
------------- Grahame Tangleberry 371-092 aviadesign.com |
Posted By: Brightside
Date Posted: 14 November 2007 at 09:15
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Hi All.
Yachting Monthly list Rocna as an exhibitor at the Earls Court Boat Show, 1-9 Dec 07. Grahame. On Brightside 371/106 we also have to push the chain forward every 10m. May be a sheet of stainless steel screwed to the floor of the anchor locker would keep it moving forwards and down but as a trial maybe spraying the floor with PTFE to see how the chain slides and piles up? Regards Mike |
Posted By: Brad McMaster
Date Posted: 14 November 2007 at 10:35
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HI all,
a little late on the seen I'm afraid but i have two rocna's a 33 and a 25 (i think!) for a 470. Rocna, fantastic, everyone that has seen it work buys one, simple as that.
But a few interesting points. I have a folding anchor arm and the 33 did not fit the anchors pin that as someone noted is designed for the delta. After much debate and discussion with knowledgeable parties and indeed Rocna management i was advise that is is OK to drill another hole in the shank to received the pin. note it takes a 12/13mm bit of high grade to get through that stuff. Now works fine.
I got two as i thought to myself, why go to all this trouble to find a primary you trust to only have a secondary you do not. Most accept this for spade type anchors but some ask, what about a Fisherman's? Waste of time, if you get the thing to hold chances are you won;t get it up again.
Rocna all the way for me I'm afraid.
Sleep tight at anchor!!!
Brad ------------- GHOST - Hanse 470e - 058 http://www.sailblogs.com/member/ghost/ |
Posted By: Richard108
Date Posted: 15 November 2007 at 19:39
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Hi Brad
I am also keen to get a Rocna (or Manson Supreme) anchor. It would be appreciated when you get a chance if you could post some pictures of the Rocna anchor on the folded and unfolded arm. Also a picture of where you drilled another hole in the shank would be appreciated.
Thanks in anticipation ------------- Regards Richard ("Moksha" 540 #115 delivered Sept 2007) Pittwater, Sydney, Australia |
Posted By: taduka
Date Posted: 15 November 2007 at 21:21
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Guys Go for Rocna. they are great. Let me know if you need any technical specifications. Shawn |
Posted By: seileren1
Date Posted: 02 January 2008 at 15:32
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I have a Rocna 25 on my Hanse 430e. The anchor sets easily and has good holding power. However, after having asked Craig at Rocna I received the following: "You can drill a hole but we don't recommend it. Firstly, you reduce the strength of the shank by the % the hole's diameter is of the entire shank. Moreover, we do not like pins through the shank - they tend to bend too easily. The Rocna has a large fluke, and if solid water hits this at sea, it can bend the pin and so jam it. We have seen too many have to be hack-sawed! Better to lash the anchor with rope or use an over-the-top restraining bar." He also e-mailed me a picture of this solution, which required a bit of metal work. For now, I will keep the Rocna in the anchor box and bring it out when I need it. Cheers |
Posted By: Brightside
Date Posted: 04 January 2008 at 19:25
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Hi Seileren 1.
Please could you post the picture Rocna e-mailed to you for the 'over the top restaining bar' Ta Mike |
Posted By: Craig Smith
Date Posted: 05 January 2008 at 02:59
It isn't the same photo but you can see the latch next to the shank (in open position):
 This is just recommended as superior to a pin. Naturally a 'pin' could also go over the top of the shank, so long as the anchor can be moved forward in the event the pin is bent and unable to be retracted.
A bit of lashing is the 'normal' solution. ------------- Craig Smith affiliated with Rocna Anchors http://www.rocna.com/ - www.rocna.com |
Posted By: Datafloh
Date Posted: 27 May 2019 at 17:24
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Hey everyone, I have one of the latest 371 and I am not very satisfied with the M-Anchor, but it seems, that fits no other anchor. I hope, I'm wrong. I also use the Gennaker Pole (well, stick). Which anchor do you use? Which fits there? Do you have pictures of your solution?  Thank you, Christian
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Posted By: astarte
Date Posted: 28 May 2019 at 07:26
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Hi, There is a very interesting web site, Attainable Adventure Cruising, where discussion on anchors has gone on for a long time. Rocna is rated as a good anchor, but it seems that the Spade is judged as the best. People report of a resetting problem with the Rocna. The setting procedure is also pointed out as very important. ------------- Kristoffer Hanse 370e #412 |
Posted By: Datafloh
Date Posted: 28 May 2019 at 12:59
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Thanks, Kristoffer, seems to be a good anchor. But my main question was, if it fits? It is very tight at the bow.
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Posted By: Ratbasher
Date Posted: 28 May 2019 at 14:31
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Data -if it helps, the Rocna website advises that you should lash rather than pin the anchor to the roller so you don't need to bother with getting the holes on the roller and anchor lined up. I fitted my H400 with a 20kg Rocna and although the holes do line up I lashed it instead with dyneema looping up from the underneath the roller and through the hole, both ends tied to the pulpit. While everyone will have their favourites, I've found the Rocna simply stunning compared to the previous Delta. It sets very easily in a variety of bottoms both initially and on turn of the tide and held solid in gusts of 40kts using a decent length of snubber. It's one of the few to have a proper attachment point for tandem anchoring but this is really meant for extreme conditions only. If you're interested, I found Amazon.de to be the cheapest by far; apparently they deliver anywhere in Europe and I got mine in the UK within 48 hours saving over £100 so I was doubly impressed. ------------- H400 (2008) 'Wight Leopard' Gosport, UK |