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Old 15-07-2007, 12:26   #1
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Anchor Chain size differences

What's the actual link-length for 1/2 inch Proof Coil vs 1/2 inch BBB anchor chain? I'm in Mexico and DON'T want to special order the wrong stuff!

For the curious: I've 200 ft but want 350 ft overall chain length for my main anchor. The genius who previously owned my boat filed and hacked the capstan gypsy to accomodate the current 1/2 inch chain - which works really well. However, the gypsy has 3/8 PC stamped upon it - which doesn't help me.

Answers or even pointers to info would be appreciated!

James...
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Old 15-07-2007, 12:41   #2
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Quote:
Originally Posted by svmariane
What's the actual link-length for 1/2 inch Proof Coil vs 1/2 inch BBB anchor chain? I'm in Mexico and DON'T want to special order the wrong stuff!

For the curious: I've 200 ft but want 350 ft overall chain length for my main anchor. The genius who previously owned my boat filed and hacked the capstan gypsy to accomodate the current 1/2 inch chain - which works really well. However, the gypsy has 3/8 PC stamped upon it - which doesn't help me.

Answers or even pointers to info would be appreciated!

James...
Sizing it All Up
Here's a handy chart for helping you mate your chain with the proper windlass for your boat.
Type of Chain
Size in Inches
Wire size in Inches
Pitch
Inside width in Inches
Links
PerFoot

Proof Coil
5/16
11/32
1.10
0.50
11
3/8
13/32
1.23
0.62
9 ¾
½
17/32
1.54
0.79
7 ¾
High Test
5/16
11/32
.98
.45
11 ½
3/8
13/32
1.22
.57
10
½
17/32
1.72
.75
7.55
BBB
5/16
11/32
1.00
0.50
11 3/3
3/8
13/32
1.09
0.62
10 ½
½
17/32
1.34
0.75
8 ¾



Hope that helps...
Bill
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Old 15-07-2007, 12:51   #3
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OK, I give up trying to reformat the table, here is the link.... Page down to find the size table...



Choosing and Installing an Electric Windlass - SailNet Community
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Old 15-07-2007, 12:51   #4
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Thanks... Gonna take me a bit of editing to put that chart in order but hey... It's a start! thanks...
James
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Old 15-07-2007, 22:10   #5
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Aloha James,
Welcome aboard!! Good to have you here. I'd like to see a photo of your boat. I baby sat a Celestial 46 ketch for a year and did some sailing with it in Hawaii. Maybe it was a 48? Hard to remember. Many years ago. It was a very nice boat.
Kind Regards,
JohnL
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Old 15-07-2007, 22:15   #6
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Aloha again James,
I did find the picture of your boat and it dows look like my friends boat. I didn't remember his having a reverse transom though.
Kind Regards,
JohnL
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Old 16-07-2007, 02:20   #7
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See the NACM “Welded Steel Chain Specifications” at:
http://www.nacm.info/Downloads/NACM_Welded.pdf
Specifically, the tables starting on page 8.
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Old 16-07-2007, 07:46   #8
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GordMay,
That'll do her - Thanks!
James...
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Old 17-07-2007, 00:40   #9
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Be aware that this thread is talking US standard sizeing not what everyone else uses. There is some big differances.
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