Stainless steel anchor chain
- Thread starter Magnum
- Start date
sarabande
Well-Known Member
Is GS' chain calibrated to DIN766 ?
Neeves
Well-Known Member
If you are looking for reliability then look here:
http://www.cromox.eu/en/
If you are looking for glitz and glamour - any old tat will do.
Unfortunately you need to pay for reliability.
I might suggest when you have a series of quotes that you ask for a test certificate defining break strength and extension to break. If this is not forthcoming, possibly wonder why.
Jonathan
http://www.cromox.eu/en/
If you are looking for glitz and glamour - any old tat will do.
Unfortunately you need to pay for reliability.
I might suggest when you have a series of quotes that you ask for a test certificate defining break strength and extension to break. If this is not forthcoming, possibly wonder why.
Jonathan
jfm
Well-Known Member
jimmy green din776 calibrated is a few pence cheaper for one metre @ £39.58 ex VAT, but your linked-to supplier seems to offer more qty discount. Perhaps email them both. Pricey stuff. It's very nice though - I've had it on last two boats as part of the standard build spec not an upgrade
SammyB
Well-Known Member
We are delighted with both our stainless steel chain(which does as jfm says flow like cream) and our Ultra SS anchor.
Whitelighter
Well-Known Member
SammyB
Well-Known Member
Yes and then later in Mallorca. We also have the Ultra snubber which is great to both deploy and retrieve.
We ordered both at the Paris Boat Show with a boat show discount!
We ordered both at the Paris Boat Show with a boat show discount!
Magnum
RIP
SammyB we have specced an Ultra s/s anchor too, although the s/s chain would be for its creamy flow (we are going from 10mm to 12mm and from 60m to 80m) rather than appearance.
Neeves
Well-Known Member
60m of 10mm will look tiny compared to 80m of 12mm! I hope you have a big chain locker.
Magnum
RIP
It's plenty big enough but s/s has been recommended to reduce peaking on retrieval.
D
Deleted User YDKXO
Guest
Apologies to Magnum for the thread drift. SammyB does that snubber stay attached to the chain whilst you deploy it even if you don't have tension on the rope(s)? The reason I ask is that we have a similar looking Osculati snubber and its a bit of PITA because you have to keep tension on the ropes as you deploy it otherwise it just falls off the chain so, effectively, deploying it is a 2 person job
Neeves
Well-Known Member
Stainless flows like silk and looks gorgeous. As you are going up in size, from 10mm to 12mm, the risks normally associated with stainless are reduced. Its worth reading the marketing information on the Cronos stainless as it underlines why in warmer climes, for example the Med, the use of Duplex stainless is preferred over conventional 316.
You will need a matching bow shackle (and get a bow shackle - it rotates in the slot in the anchor and offers best opportunity of a straight line pull). . Buy one from a reputable manufacturer that has a MBS, if it only has a WLL - check the safety factor, some stainless shackles have a safety factor of 2:1, some 6:1 - makes a difference! I cannot recommend one with a recessed head, alan key recess. Go for the biggest one that will fit both chain and anchor - its worth taking the anchor and 3 links to the chandler to make sure they fit. When you find a shackle with which you are comfortable, buy 2 - its easy to loose the pin overboard! If you are unlikely to remove the anchor - secure with Loctite (and mousing wire).
Finally use a snubber. This will take the load off the windlass and thus neither damage the windlass nor deck - in a blow. Ideally the snubber needs to be really long, 30', as it then also protects the chain - but I know you MoBo owners think this is stupid. The Snubber should ideally be nylon and think of it as a consumable. Get a decent hook to attach the snubber to chain, cheap hooks will damage chain, especially if you use a short snubber.
I bet your new gypsy will have cost - we did the opposite to you, we went down size. Our new gypsy would have cost Stg250 and it was only 6mm.
Good luck
You will need a matching bow shackle (and get a bow shackle - it rotates in the slot in the anchor and offers best opportunity of a straight line pull). . Buy one from a reputable manufacturer that has a MBS, if it only has a WLL - check the safety factor, some stainless shackles have a safety factor of 2:1, some 6:1 - makes a difference! I cannot recommend one with a recessed head, alan key recess. Go for the biggest one that will fit both chain and anchor - its worth taking the anchor and 3 links to the chandler to make sure they fit. When you find a shackle with which you are comfortable, buy 2 - its easy to loose the pin overboard! If you are unlikely to remove the anchor - secure with Loctite (and mousing wire).
Finally use a snubber. This will take the load off the windlass and thus neither damage the windlass nor deck - in a blow. Ideally the snubber needs to be really long, 30', as it then also protects the chain - but I know you MoBo owners think this is stupid. The Snubber should ideally be nylon and think of it as a consumable. Get a decent hook to attach the snubber to chain, cheap hooks will damage chain, especially if you use a short snubber.
I bet your new gypsy will have cost - we did the opposite to you, we went down size. Our new gypsy would have cost Stg250 and it was only 6mm.
Good luck
MapisM
Well-Known Member
Neeves, I have zero interest to restart the debate on this matter that was already done to death in Hurricane thread on his anchoring upgrade, but for the records, I can't recall anyone to have called your suggestion (let alone yourself!) stupid.
None of us moboers would even consider such ground tackle setup not because it's stupid, but because it's way OTT and unnecessary for most anchoring needs.
If Magnum would be planning to anchor in Antarctic storms, he would be buying a completely wrong boat altogether, to start with!
jfm
Well-Known Member
Yup. And not OTT in any complimentary sense. Where Magnum will be boating, if the wind gets that strong he will want to get the hell out, not stay put. His wife may well be attending to a <1 yr old baby. The last thing he wants when retrieving an anchor in an unexpected strong wind is to be faffing and tangling a snubber, when a simple press of a button will retrieve the anchor if there is no snubber. I never use a snubber, and doubt I ever will, for exactly this reason: in a storm I don't want to stay anchored, I want to get underway quickly.Neeves, I have zero interest to restart the debate on this matter that was already done to death in Hurricane thread on his anchoring upgrade, but for the records, I can't recall anyone to have called your suggestion (let alone yourself!) stupid.
None of us moboers would even consider such ground tackle setup not because it's stupid, but because it's way OTT and unnecessary for most anchoring needs.
If Magnum would be planning to anchor in Antarctic storms, he would be buying a completely wrong boat altogether, to start with!
Neeves
Well-Known Member
Nice of you to have explained Magnum's views, if one were aware then people would not offer advise.
Going from 10mm to 12mm stainless is not a step one takes without serious thought, unless you have just won the lottery. There are many ways to skin a cat - some of which some of you have rejected - others who read these threads might enjoy new input, which is what these threads, are usually, about. Oddly I notice mention of a snubber - only a few posts ago, some accept snubbers some reject them outright.
As I said,
Good Luck
Edit - on thinking about it - There is a contradiction, the definition appears to be anchoring in good to fair conditions. This implies catenary is not really essential so why the need to upsize from 10mm to 12mm. In addition to the cost of a complete new, heavier and longer chain there is also the cost of the new gypsy. The equipment is going to be good for pretty arduous conditions (so why buy it otherwise) - which are apparently not expected as the concept is to leave if the vessels starts to rock and roll. Stg3,000 - Stg4,000 for a lunch time stop - now that's really OTT. close edit
Going from 10mm to 12mm stainless is not a step one takes without serious thought, unless you have just won the lottery. There are many ways to skin a cat - some of which some of you have rejected - others who read these threads might enjoy new input, which is what these threads, are usually, about. Oddly I notice mention of a snubber - only a few posts ago, some accept snubbers some reject them outright.
As I said,
Good Luck
Edit - on thinking about it - There is a contradiction, the definition appears to be anchoring in good to fair conditions. This implies catenary is not really essential so why the need to upsize from 10mm to 12mm. In addition to the cost of a complete new, heavier and longer chain there is also the cost of the new gypsy. The equipment is going to be good for pretty arduous conditions (so why buy it otherwise) - which are apparently not expected as the concept is to leave if the vessels starts to rock and roll. Stg3,000 - Stg4,000 for a lunch time stop - now that's really OTT. close edit
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rwoofer
Well-Known Member
Isn't that the point - using heavier chain reduces the need for a snubber as the increased catenary effect reduces shock loading.
Neeves
Well-Known Member
Correct.
I hate to infiltrate a private party, especially as I have not been invited, and worse am unwelcome - but I had thought it was a public forum open to all.
Sometimes you cannot deploy enough chain to give the 'catenary' effect. The anchorage is too small or its popular.
I appreciate the strategy is to escape the bad weather by going someplace else, and quickly. My understanding is that thunderstorms develop quickly, can be in the path of your escape route and you might be ashore and have insufficient time to return anyway.
The time taken to remove a snubber is negligible - no matter how fast you motor an extra 60 seconds is not going to be critical.
Deleted User - most 'chain hooks' if they are easy to put on also fall of with the same ease. Even if you deploy with 2 people there is always the chance when the anchor chain is slack they can fall off. Your complaint and that of hooks falling off is quite common. There are very simply devices on some chain hooks to secure them or you can (for some designs) easily retrofit. But let's not go down that path as I am simply going to be rebuked and ridiculed as snubbers are not to be discussed, ever.
I hate to infiltrate a private party, especially as I have not been invited, and worse am unwelcome - but I had thought it was a public forum open to all.
Sometimes you cannot deploy enough chain to give the 'catenary' effect. The anchorage is too small or its popular.
I appreciate the strategy is to escape the bad weather by going someplace else, and quickly. My understanding is that thunderstorms develop quickly, can be in the path of your escape route and you might be ashore and have insufficient time to return anyway.
The time taken to remove a snubber is negligible - no matter how fast you motor an extra 60 seconds is not going to be critical.
Deleted User - most 'chain hooks' if they are easy to put on also fall of with the same ease. Even if you deploy with 2 people there is always the chance when the anchor chain is slack they can fall off. Your complaint and that of hooks falling off is quite common. There are very simply devices on some chain hooks to secure them or you can (for some designs) easily retrofit. But let's not go down that path as I am simply going to be rebuked and ridiculed as snubbers are not to be discussed, ever.
Magnum
RIP
Interesting and thank you all for the comments. Doesn't a chain stopper keep everyone happy?
http://www.lewmar.com/node/11663
http://www.lewmar.com/node/11663
rwoofer
Well-Known Member
Trying to keep everyone on the forum happy - good luck!
I would agree with a chain stopper, keeps the load off the windlass, which is probably a more relevant benefit in the kind of anchoring you envisage.
I would agree with a chain stopper, keeps the load off the windlass, which is probably a more relevant benefit in the kind of anchoring you envisage.
Neeves
Well-Known Member
If you have a reliable chain stopper, correctly installed - Great. Many vessels need them to be retrofitted - snubbers are pretty simple. cheap and reliable. If you have lots of spare cash, get a reliable chain stopper.
Certainly no cause for anguish, on or off a forum - and no need to discourage anyone mentioning either (or both) and no need to be exclusive.
Certainly no cause for anguish, on or off a forum - and no need to discourage anyone mentioning either (or both) and no need to be exclusive.