Join Date: Jul 2006
Thanked 0 Times in 0 Posts
Rep Power: 0
Just received the Colligo Eng. swivel in the mail. Looks pretty darn heavy duty. Pretty clever device containing Six Large 5/8" shackles - three on each side of the swivel - this one made specifically for a multihull.
Here's what I'm thinking as of today for a hurricane anchoring setup: This is based on what I have in my inventory or will have soon on hand.
Boat, LOA, Beam, Weight: My boat is a 2001 35 ft Wildcat Catamaran with 21.5 ft beam and 11,000 lb displacement that draws 3.5 feet.
Depth and Bottom Conditions: Five to Six feet of water in a predominately mud/sand mix bottom. I'll anchoring in a semi protected area that's a little more exposed to the SW than other angles.
Anchoring Setup: 3 Anchors set at 0 degress, 120 and 240 degress from each other.
Rode #1 Fortress FX-37 with 40 ft. of all chain rode (3/8" HT) to the middle shackle of the Colligo swivel. This anchor will be placed in the direction of where the forecasted predominant wind will be coming from.
Rode #2 Fortress FX-23 with 50 ft. of all chain rode (5/16" Proof Coil) placed in the direction of where the wind my be forecasted to begin to shift towards.
Rode #3 Delta 35 or 44 lb fixed plough with either (A) chain rode combo consisting of 25 ft of 3/8" Proof Coil with 35 ft of 3/4" 3 strand nylon (60 ft total length) or (B) 60 feet of all chain rode (5/16" Proof Coil). Which do you think is best, A or B?
I have a 35lb CQR but not sure if I should use this in a storm.., I hear claims that the fixed shank Delta will hold better than the swiveling CQR in this type of mud/sand bottom.
You'll notice that my scope from the swivel (which will be just alittle above top of the water) increases 7.1 with 40 feet for Rode #1, to 8.2 with 50 feet for Rode #2, to 10.1 with 60 feet for Rode #3. This is based on approx 6 feet of depth. My thoughts on this multiple lenghts is if for some reason there is an anchor drag problem at least the rodes will be at different lengths - hopefully avoiding any sort of tangling.
From the swivel, which like I say will be just above the water line - I'll run three 3/4 inch 3 strand nylon lines approx 20 or so feet that'll each be spliced to thimbles that'll go to the three seperate shackles (5/8") on the Colligo swivel setup. One line through a chauk to the port cleat, middle line through the anchor roller clove hitched to the windlass, and the other line through a chauk to the starboard cleat.
Question, do you think 3/4" inch 3 strand will allow ample enough stretch? I have 200 feet (plus or minus) of this line which I recently purchased so.., Not sure if I went too big.
Chafing gear - although I have plenty of old fireman hose I could cut up I'm concerned about the heating problem due to the friction of the line on the rubber inner coating of this hose. Sailingdog is recommending canvas or denim.., and will I want to sew this into the line or somehow tie this onto the cleats and anchor roller?
And then of course, five Hail Mary's and five Our Fathers..,
Interested in hearing opinions on this anchoring setup.
It's amazing how may different ideas there are. Just curious to hear some educated thoughts.
Thanks again, Kevin S/V Blade Runner.
P.S. Rich, Let me know if you wanna check out this Colligo swivel in case you haven't ordered yours as yet.