Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 29-10-2013, 16:25   #31
Registered User

Join Date: Oct 2013
Location: Norway
Boat: Koopmans 40 aluminum centerboard cutter
Posts: 32
Re: Hurricane safety, - chain or rope?

..and another small note on the subject of all chain, all rope or some sort of combination; the following page has a systematic approach at the questions, albeit somewhat complicated theory. Interesting though!

Rode - Dynamic Behavior
SY Marelot is offline   Reply With Quote
Old 29-10-2013, 16:36   #32
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 13,480
Lived all my life in the hurricane belt.

Hurricane saftey = evacuation.
belizesailor is offline   Reply With Quote
Old 30-10-2013, 12:50   #33
Registered User
 
svmariane's Avatar

Join Date: May 2007
Location: On the hard due to wife's medical condition.
Boat: Sold, alas, because life happens.
Posts: 1,829
Re: Hurricane safety, - chain or rope?

Quote:
Originally Posted by SY Marelot View Post
..and another small note on the subject of all chain, all rope or some sort of combination; the following page has a systematic approach at the questions, albeit somewhat complicated theory. Interesting though!

Rode - Dynamic Behavior
Yeah. Esoteric, that. And actual experience concurs, which resulted in people use a LONG line as a snubber on their all-chain anchor system: reduced shock loading on the anchor itself.

The all-chain approach gets used (in my opinion) as safeguard should the snubber(s) break. That provides time, however limited, to rig another snubber. However, as others pointed out, vigilance is key. Suitable chaff guard extends the life of the snubber during violent action. The prudent mariner would be well advised to check for chaff wear and take action before the snubber line itself becomes damaged.

Contrary to using a kettle, one might consider using small floats on the snubber line! That would keep the snubber line off the seabed, preventing chaff from coral and/or other bottom junk, and allow using longer line. (This under the scenario you presented: hurricane anchoring. Too much of a waste for anything below 60-odd knots of wind. And in "normal" anchoring, the floats would raise the line sufficiently to become entangled with your keel/rudder, or other boats motoring past whilst checking out the anchorage.)
__________________
"Being offended is not the same thing as being right." Dave Barry.
Laughter is the salve that keeps reality from scaring.
¯\_(ツ)_/¯
svmariane is offline   Reply With Quote
Old 30-10-2013, 14:28   #34
Registered User

Join Date: Mar 2013
Posts: 111
In 2004 we anchored our Ericson 38 out to ride out three hurricanes. Charlie, Frances and Jeanne. For Frances we anchored her in Clearwater Harbor just a quarter mile inside Sand Key about halfway between the CG Station and the Sailing Center. If I remember right the depth was about 12 ft maybe a bit more. We used 100 ft of 5/16 ht chain and 200ft of 5/8 nylon 3 strand on a single Fortress FX 35. Chafing gear was the Canvas firehose type over the bow roller.

The boat rode out winds over 35k for three straight days ...peak winds of 75k. The boat never moved except that it pounded severly in the chop. The only damage was a broken steering cable. I had tied off the wheel but the surging was tremendous. No damage to the rode and not much wear on the chafing gear either.

In Charlie and Jeanne we anchored in canals behind houses and so did not see that much wave action. In the canals with not much swinging room we used two hooks such that we could swing clear no matter what the wind did. I used a makeshift kellet (dive weights) on the second rode to avoid snagging the keel or rudder on the rode. Works like a charm. The primary rode was the same as above but the second had less chain, only 50 ft as I recall.

I've used the same kellet many times in the Bahamas where tidal currents shift more than the wind.




The boat
Capt RonB is offline   Reply With Quote
Reply

Tags
hurricane, rope, safety

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Advertise Here


All times are GMT -7. The time now is 11:13.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.