Hurricane help

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Bill O'Donovan

With hurricane season approaching, can anyone vouch for those rubber tubes that are used to absorb the shock of a dockline? Any anecdotal evidence? Thanks.
 
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Andy Howard

Probably useless if not harmful

I'd be concerned about them chafing my docklines or weakening them depending on how they are attached. Almost all of the hurricane damage that I've seen is from boats that rode out hurricanes in slips. When Bertha and Fran hit us in '96 hardly anyone anchored out or pulled their boats. The storm surge 8-10ft+ was higher than many pilings and lots of boats were holed or busted as they tried to settle directly onto the pilings after their too short docklines snapped. When Bonnie came along in 98 and Floyd hit us in '99, our docks were deserted and there was very little damage, except to the docks.
 
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Allen

I've heard otherwise

This is just what I've read in several articles about storm anchor rode chafe, but the principle applies to any nylon dockline. Basically, internal heat will be generated from any nylon line that is experiencing high cyclical loads. The failure point is usually between the bow chock and a the waterline (i.e. places where the water can't cool the line to reduce the damage from high internal heat). Anything that can help to reduce the shock of each cyclical load will help to reduce the heat that will inevitably lead to wear & failure. That being said, my only concern with the rubber line inserts would be that, if the rubber failed, how much extra slack would there be in the dock line? I'd be sure to arrange my boat so that if the rubber did fail, I'd hopefully still not rub against the dock. As for hurricane protection? That's a lot to ask. Even if your lines held...would the dock? I'd haul or move the boat to a protected river or cove if I could. Hope this helps! --Allen
 
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DJ

Did not help

My Hunter 34 was in Pensacola when Hurricane Erin hit in'95. I had two wrap the line around type rubber snubbers. Both broke and the line ended up slack. Did not matter much. I had the boat set up so that each corner of the boat had two lines from two different pilings to hold the boat in the center of the slip. Total of 8 lines to 6 piles (2 each of fore springs to bow cleats, aft springs to stern cleats, bow and stern). Figured the way the pilings looked (worm eaten at the bottom just above the sand line), they would go first. Well while I was working for a few months in Washington, DC, they replaced the pilings. When the hurricane hit, I was still in DC and reading about how bad Pensacola was hit (One hotel on Pensacola beach had it address changed several blocks). The wind was on the starboard side and jerked the boat sufficiently to break two 1/2 inch 3 strand lines on one of the bow cleats causing the boat to spend 2 days rubbing up and down a pile on the port side. Lost several fenders (two broke away completely where they were tied to the toe rail, and one was burst), the toe rail was worn smooth from rubbing through half of a 3 foot section of an 8 inch pile, and some minor gel coat nicks. The rudder chain around the wheel was broken from the movement of the rudder even with the wheel brake on. The forestay was also damaged from rolling into the mast on the big 40 foot home built ferro-cement boat on the port side. The two lines broke at the bowline knot (right where the standing part of the line comes through the loop behind it) that was tied to put the line around the pilings (knots can reduce the strength over 50 percent.) Shipped the boat by truck to MD two weeks before Hurricane Opal really trashed Pensacola. The rubber snubbers did not really help any but did not cause major problems. I used them in Boston Harbor while tied to a floating dock. When a big ship would pass the dock would move out of sync with the boat. The rubber snubbers then did a great deal and made it more comfortable to live on the boat in Boston. Except for an 8 inch worn spot on the toe rail, no lasting problems with the boat. Thought she was gone after hearing about Erin. And that big Ferro-cement boat next to me? Well she went trough the boat to the port of her, through the dock, through the boat on the other side of the dock and through another part of the dock. Glad she was downwind of me! Bottom line is to pull your boat or move her to a safe anchorage if you can. Other wise double all lines leaving in enough slack for a ten foot rise in water level.
 
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