Lofrans Cayman chain type? - SailNet Community
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post #1 of 15 Old 02-10-2019 Thread Starter
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Lofrans Cayman chain type?

When I started refitting this boat last year, I purchased a Lofrans Cayman windlass and installed it.

As I'm (finally!) nearing the end of the refit, I need to buy ground tackle. The gypsie on the windlass has "8MM" stamped on it. It's my understanding that there are size difference between HT and BBB chain. Does anyone know which type is correct for this Windlass? I'm attempting to contact Lofrans, so we'll see if their support is any good.
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post #2 of 15 Old 02-11-2019
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Re: Lofrans Cayman chain type?

Its not the windlass, its the gypsy. you can pull it off and change it to whatever size you want the chain to be. But they are not cheap.. $200?

Wgat the size of your boat? 8mm is very small. I use 10mm on a 39 footer.

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Re: Lofrans Cayman chain type?

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Originally Posted by MarkofSeaLife View Post
Its not the windlass, its the gypsy. you can pull it off and change it to whatever size you want the chain to be. But they are not cheap.. $200?

Wgat the size of your boat? 8mm is very small. I use 10mm on a 39 footer.
Right ... but I'd prefer not to change the gypsy unless I have to ...

The boat is a Tartan 37, so 37 foot and about 15000 pounds dry.

I also heard back from Lofrans this morning, and they claim the type of chain _is_ stamped on the gypsy, so I'll have another look ... Turns out it's stamped DIN766, which I didn't previously recognize as part of the chain designation, but now I know ...

Using this https://www.westmarine.com/WestAdvis...An-Anchor-Rode and considering my boat medium weight, I get 1/2" rope and 1/4" chain as recommended sizes. Since 8MM is about 5/16, it's actually a bit larger than the recommendation. Did I read that chart wrong or is this a matter of personal experience on your part that bigger is needed?

Last edited by BillMoran; 02-11-2019 at 08:25 AM.
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Re: Lofrans Cayman chain type?

Prob 5/16 g4 chain matched to 5/8 8-plait nylon
...but check what your gypsy will handle
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Re: Lofrans Cayman chain type?

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Originally Posted by BillMoran View Post
Using this https://www.westmarine.com/WestAdvis...An-Anchor-Rode and considering my boat medium weight, I get 1/2" rope and 1/4" chain as recommended sizes. Since 8MM is about 5/16, it's actually a bit larger than the recommendation. Did I read that chart wrong or is this a matter of personal experience on your part that bigger is needed?
The chart for your boat says 5/16" chain, unless using HT, then 1/4". Personally, I would use 8mm or 5/16" HT (G43) chain if it was my boat - and I'm a proponent of light chain.

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Re: Lofrans Cayman chain type?

Your 15.5 dry boat will prob be over 18 when you are supplied
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post #7 of 15 Old 02-11-2019
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Re: Lofrans Cayman chain type?

Take the gypsy with you when visit the chain supplier. Buy chain that fits the gypsy.
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Re: Lofrans Cayman chain type?

Although inches can be converted to milimeters, there will be differences. make sure you use the chain specified for your gypsy. Hand fitting the chain on the gypsy is not very indicative.
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Re: Lofrans Cayman chain type?

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Originally Posted by celenoglu View Post
Although inches can be converted to milimeters, there will be differences. make sure you use the chain specified for your gypsy. Hand fitting the chain on the gypsy is not very indicative.
Apparently (according to Lofrans) 5/16" and 8MM are 100% interchangeable. Your overall point is taken, however.
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Re: Lofrans Cayman chain type?

Very close but not the same. I am sometimes using 1/2 inch wrench for 13mm bolts. They are also very close but if the bolt is a little bit corroded, I feel the 1/2 fits better.
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