Rocna anchor on H36 ?

Johnb · Aug 27, 2013

You are cognizant of the whole history of Rocna anchors? If not check it out so you make a well informed decision.

Stu Jackson · Aug 27, 2013

That Rocna warning is basically old news, about two or three years old. They've fixed the issue of bent shanks. If anybody's sitll "worried" about this non-event, then buy a Manson Supreme. :dance:

For the OP, I am not familiar with your particular existing bow roller. On our C34s, we have either the newer longer rollers (after 1988 or so) or what we call our old "toy" bow rollers. Sometimes longer rollers end up having longer leverage, which requires really firm backing plates. Many of us have opted to keep our old toy rollers because they're right on top of the bow and pretty strong, and hold the new gen anchors quite well, although they need line holders, like in these photos (three pages). Good luck.

http://c34.org/bbs/index.php/topic,4457.0.html

Scott B · Aug 27, 2013

15kg. Rocna fits on my H33, I assume they are the same roller.

Alan Gomes · Aug 27, 2013

Stu Jackson said:
That Rocna warning is basically old news, about two or three years old. They've fixed the issue of bent shanks. If anybody's sitll "worried" about this non-event, then buy a Manson Supreme. :dance:

For the OP, I am not familiar with your particular existing bow roller. On our C34s, we have either the newer longer rollers (after 1988 or so) or what we call our old "toy" bow rollers. Sometimes longer rollers end up having longer leverage, which requires really firm backing plates. Many of us have opted to keep our old toy rollers because they're right on top of the bow and pretty strong, and hold the new gen anchors quite well, although they need line holders, like in these photos (three pages). Good luck.

http://c34.org/bbs/index.php/topic,4457.0.html

Stu,

How do you like your Rocna 10 on your Catalina 34? (From the pics you posted I see that's what you have.) Do you find that to be adequate? I bought a Rocna 10 for my Ericson 26, which is a much smaller boat than yours (26' and 5250#), and figured it is more than enough but still well within the weight I am prepared to handle. I've only anchored with it twice but so far so good!

--Alan

heart of gold · Aug 27, 2013

I have a H34 and the Rocna fits perfect on my bow roller. I've been hooking the bottom for 3 years now and no problems...shanks a lot.

chuckwayne · Aug 27, 2013

we've had a Rocna 20 on our H356 for about 3 years and it fits the bow roller perfectly. Also works great! we've never had a missed set, or dragged, even in some pretty funky Maine bottoms. I think the 36 uses the same roller assembly.
BTW, we tried a manson on an earlier Hunter 33.5 and it didn't fit - so be sure you can return the anchor after you try it on the bow

Stu Jackson · Aug 27, 2013

Most anchor websites have dimensions. Why would one buy an anchor and later figure out it doesn't "fit?" What part of it didn't fit? Any pictures? Thanks for helping me to understand.

chuckwayne · Aug 28, 2013

NP! the 20 has held us in winds to 45Kts, and the only issue we've had is that you really have to follow the directions-the part that says when you drop the rocna, hold on! we typically drop the hook, back off slowly to 2x scope and set the anchor-it grabs almost instantly-if you don't hold on, you'll go flying. We then back out the desired scope.

Stu Jackson · Aug 28, 2013

Alan Gomes said:
Stu,

How do you like your Rocna 10 on your Catalina 34? (From the pics you posted I see that's what you have.) Do you find that to be adequate? I bought a Rocna 10 for my Ericson 26, which is a much smaller boat than yours (26' and 5250#), and figured it is more than enough but still well within the weight I am prepared to handle. I've only anchored with it twice but so far so good!

--Alan

Alan,

It's great. Like he said, HOLD ON TIGHT when you deploy it.

ANCHOR SYSTEM SIZING - It's a system. Many may feel my anchor is too light for my boat, and another friend with a C34 has a Rocna 20.

Why?

Try this:

Anchor System Sizing Tables (Reply #6) http://c34.org/bbs/index.php/topic,4990.0.html http://c34.org/bbs/index.php/topic,4990.msg30400.html#msg30400

You might want to read the whole thread for background and explanations.

Good luck, size your SYSTEM for where and how YOU boat.

Stu Jackson · Aug 28, 2013

PKFK said:
1. .......and a rocna 20 is what I was considering. .

2. Stu - yes I know I can get dimensions- which I would do, but nothing beats checking around for others experience with the same model boat - especially when it comes to fitting stuff like this. And since these items are often special order - a return can be a problem.

Think of it like navigation or weather info - go for multiple sources of info and then make your decision !

//

Paul,

1. You might be interested in the link I just provided for Alan.

2. Thanks, that's what I figured but wanted to know from you, and also why I posted flicks of our boats' arrangements, not knowing what you had on your boat.

Good luck, but with your new anchor you won't need any.

Alan Gomes · Aug 28, 2013

Stu Jackson said:
Alan,

It's great. Like he said, HOLD ON TIGHT when you deploy it.

ANCHOR SYSTEM SIZING - It's a system. Many may feel my anchor is too light for my boat, and another friend with a C34 has a Rocna 20.

Why?

Try this:

Anchor System Sizing Tables (Reply #6) http://c34.org/bbs/index.php/topic,4990.0.html http://c34.org/bbs/index.php/topic,4990.msg30400.html#msg30400

You might want to read the whole thread for background and explanations.

Good luck, size your SYSTEM for where and how YOU boat.

Thanks! There's some great stuff in that thread, and especially the comment about a setup with 100' of chain for anchoring in 25 to 30 feet of water. This caused a lightbulb to go off in my head....I'm in Southern California and I rarely anchor in less than 25', but typically no more than 50' of depth. My most common depth would be about 30-35' (e.g., over at Cat Harbor or Little Fisherman's, both coves at Catalina). I think for my "system" it would make good sense for me to increase my amount of chain to 100' and then, in most instances, I'd just have to let out all the chain and only deploy a relatively small amount of the rope rode (i.e., to get the desired scope), which I'd tie off to the cleat. The only way that would be "too much" chain is if I were anchoring in, say, 10' of water, which I never do--ever.

Of course, I really need to give this a bit of thought, granting that I have no windlass....Maybe with 1/4" G70 (high tensile) it might not be too bad? I'd still be looking at 66 lbs. or so...Hmmmmm....

Bob 04 H260 · Aug 29, 2013

Paul, I have a 35 lb. Manson Supreme on our H356. It fits the bow roller fine. The cross pin can not be used unless I drill a hole in the shank. With it hauled up tight with the windlass it can not move a bit. It sets right away and holds extremely well. I have 100 ft of chain and 75 ft of 3 strand that has been adequate in the shallow areas we cruise in. In a crowded anchorage we can usually use just a 3:1 scope on all chain.

Bob

chuckwayne · Aug 29, 2013

Alan,
We have 150' of chain on our Rocna (with 150' of Brait as backup) I usually set 3:1 with a 15' nylon snubber to ease the shock load--but we've got a windlass. I'd think carefully before going to all chain-even the G70 will feel heavy after a few sets

Alan Gomes · Aug 30, 2013

chuckwayne said:
Alan,
We have 150' of chain on our Rocna (with 150' of Brait as backup) I usually set 3:1 with a 15' nylon snubber to ease the shock load--but we've got a windlass. I'd think carefully before going to all chain-even the G70 will feel heavy after a few sets

Chuck,

Roger that. I'm under no illusions about the impossiblity of going "all-chain," or even 150' of chain, such as you have. What I was thinking is increasing my 35' (or so) of chain to 100'. Muscling my current setup without a windlass is no problem at all. But perhaps 100' would be overdoing it.

Rocna anchor on H36 ?

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