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Thu, March 28 2024, 15:51Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 12345678[9] ]


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Date Posted: - Monday - 12/25/06 - 6:47pm
Author: Steve M-32 Pyxis
Subject: Rode size
In reply to: matts djos 's message, "Anchor rode for M31--how thick? how strong?" on - Friday - 12/22/06 - 10:16pm

Nigel Calder gives the design load for a boat like a 31/32 at about #3000 in 60 knots of wind, about #1500 in 42 knots. For those numbers I would think that 5/8" would be as big as you would need and Calder recommends heavier than just about anyone else, most sources would give 1/2" for our boats. I have 5/8" on my working anchor. Remember if you have too large a rope you lose the stretch that makes you more comfortable at anchor.

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Replies:

[> Me too -- Randall, Murre, M31, - Wednesday - 12/27/06 - 1:43pm

My rope rode was on the boat when I purchased it (2003). I tried measuring w/calipers last night and it comes out to be 11/16ths, which I assume really means it's 5/8ths (seems it would thicken and loosen a bit w/age).

It's 3-brade, nylon.

STEVE, where'd you get the Calder data? Nice stuff.

RR


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[> [> Ground tackle loads -- Steve M-32 Pyxis, - Wednesday - 12/27/06 - 1:58pm

Chapter 9 of his "Cruising Handbook". He has very extensive data regarding anchoring systems, techniques and gear. Good stuff.


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[> [> [> Ground Tackle Loads -- Matts, - Saturday - 12/30/06 - 12:20pm

Thanks for the good advice--9/16 triple strand it shall be.

I never thought about the stretch factor; that's a nice consideration.

It will be a relief to be rid of that 1 1/2" hawser....

Have a grand 2007

matts


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