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Go Back   SailNet Community > On Board > Gear & Maintenance > Anchor Wars
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Thread: Anchor Wars Reply to Thread
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Topic Review (Newest First)
01-25-2013 02:14 PM
Mantus Anchors
Re: Anchor Wars

Sure thing, Delta and CQR often drag on their sides: Test Videos | MantusAnchors
But they have the possibility of setting, they are designed to dig in that orientation.

However, a Mantus or a Rocna or a Manson Supreme or a Bruce for that matter, if upside down are rendered useless... The Roll bar reorients the anchor into the right position for setting....

Given that Mantus has really wide ear tabs the likelihood of it flipping upside down is low, but exists... so we recommend to use the anchor with the roll bar and you will have a reliable and immediate SET in any terrain.
Greg
01-25-2013 01:07 PM
Argyle38
Re: Anchor Wars

Quote:
Originally Posted by Mantus Anchors View Post
This is an interesting question, that we get a lot... Roll-bar does not affect stting ability... In-fact, it can be used without the roll-bar, there is a possibility of the anchor flipping upside down after hitting a rock for example in such case the anchor will not set and the roll-bar protects against such event...
I have used the anchor for a year with 100% success rate on setting without the roll-bar....
Roll-bar only serves this function, flips the anchor into the correct orientation. It was an earlier prototype, before we decided to put the roll bar on.....
Sorry it's taken so long to ask a follow up question, but I've been away for much of the last few weeks and this topic slipped my mind.

My question is, wouldn't this occurrence (anchor flipping and not being able to dig in) be just as likely with a CQR or a Delta?
01-25-2013 11:17 AM
Mantus Anchors
Re: Anchor Wars

Netters, meet us at Miami International Boat Show!
Booth 4022
We will be raffling off 2000$ worth of Mantus Products and offering big discounts....
01-02-2013 01:54 PM
Mantus Anchors
Re: Anchor Wars

Quote:
Originally Posted by Bambolera View Post
The boat came with a 45 CQR, which I never liked much. I had the opportunity to sell it for full retail when visiting the Galapagos. Since then, I've been using my spare, a 33lb Spade . This anchor is amazing, but I still need another anchor (to replace my spare).

Since I haul it by hand, I like the lighter weight of the Spade. From my experience (out cruising for 11 years), when conditions require it, I just add scope and a second anchor, rigged in tandem, if necessary

I'm leaning towards the 35lb Mantus (role bar removed) for the primary and moving the Spade back to the bilge for a spare.
Got it... Honestly I hate to say it, but I think you are better off leaving the Spade on the bow... Last thing you need is a failure to bite because the anchor flipped, its a rare event but possible without the roll-bar and can happen in the most inopportune time..... Spade is a very good anchor. The marginal advantage of the Mantus is offset when you have an anchor that does not right itself...
Just imagine a sloped bottom or a bump on a rock....
Greg
01-02-2013 08:23 AM
Bambolera
Re: Anchor Wars

Quote:
Originally Posted by Mantus Anchors View Post
Since this is a 32 foot boat and does not have the wind-age of a modern 20,000 lbs boat I am tempted to say 35 lbs will be ok, but then when it comes to shock loads the mass/momentum becomes really important, so a 45 lbs anchor is totally reasonable and if it were me that's what I would do.
What do you have now?
Greg
The boat came with a 45 CQR, which I never liked much. I had the opportunity to sell it for full retail when visiting the Galapagos. Since then, I've been using my spare, a 33lb Spade . This anchor is amazing, but I still need another anchor (to replace my spare).

Since I haul it by hand, I like the lighter weight of the Spade. From my experience (out cruising for 11 years), when conditions require it, I just add scope and a second anchor, rigged in tandem, if necessary

I'm leaning towards the 35lb Mantus (role bar removed) for the primary and moving the Spade back to the bilge for a spare.
01-02-2013 07:52 AM
Mantus Anchors
Re: Anchor Wars

Guys remember that we have a sponsorship program, if you are doing something cool,
Write us! there is a sponsorship link on the website....
Greg
01-02-2013 07:50 AM
Mantus Anchors
Re: Anchor Wars

Quote:
Originally Posted by Bambolera View Post
Which size do you recommend for a Westsail 32? A large 32 at 20,000 lbs. I plan to use the anchor without the hoop. Will that change the weight much? Should I move up to the 45 lb.?
Since this is a 32 foot boat and does not have the wind-age of a modern 20,000 lbs boat I am tempted to say 35 lbs will be ok, but then when it comes to shock loads the mass/momentum becomes really important, so a 45 lbs anchor is totally reasonable and if it were me that's what I would do.
What do you have now?
Greg
01-02-2013 07:39 AM
Mantus Anchors
Re: Anchor Wars

Bolts take up the load, but when assembled and fasteners are tight and greased there is little movement between the bearing surfaces, compared to the external part of the anchor that gets dragged on the sea floor. So the rust usually first appears on the nose of the anchor and then other external areas exposed to the sand paper effect of the sea bottom.

We have not done testing on the SS bolts for crevice corrosion. Though it will not be very different than corrosion involving a welded shank fluke attachment....
Remember a single bolt is enough to handle the maximum expected loads on the anchor... and there are four......
01-02-2013 06:04 AM
Minnewaska
Re: Anchor Wars

Quote:
Originally Posted by Mantus Anchors View Post
Galvanized Steel Anchor
The bolts on the galvanized anchor are galvanized steel bolts. We provide lubricant for assembly to prevent seizing on future nut removal. Rusting begins only in areas where galvanization is lost. The bolt's body is not exposed to rubbing, so the galvanization layer stays intact. When the anchor starts to show significant signs of rust, bolts should be inspected.
Just like any other anchor when it starts rusting compromising integrity...

Stainless Steel
Our stainless steel anchors come with 316SS fasteners
Thanks. I see I was mistaken about the dissimilar metals in the anchor.

However, have you done testing on crevice corrosion for the ss model, if left permanently bolted? How is the galvanized bolt not exposed to rubbing? What takes up the load, are there pins?
01-01-2013 10:21 PM
Bambolera
Re: Anchor Wars

Which size do you recommend for a Westsail 32? A large 32 at 20,000 lbs. I plan to use the anchor without the hoop. Will that change the weight much? Should I move up to the 45 lb.?
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