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Old 21-08-2009, 17:57   #1
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Anchor Hitting the Bow



I recently carried a Rocna 15 in my luggage from ME to Grenada. It was considerable cheaper purchasing in the states than here. Attached the anchor to the chain and when I brought it up I found that the fluke almost rest on the bow of the boat.

Outside of having a steel guard made or getting another anchor, any suggestions on saving the bow from getting all cut up?
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Old 21-08-2009, 18:02   #2
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Get your anchor roller out farther from the bow.
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Old 21-08-2009, 18:43   #3
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if all you need is to pick up a small amount of clearance, installing a larger-diameter roller might do it. Going from a 2" roller to a 3" roller will move the entire anchor forward 1/2".
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Old 21-08-2009, 18:45   #4
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Could you put a larger diameter roller in to give you a bit more room? Making the boat longer works or adding a bow sprit but I doubt that was what you had in mind. It's OK to be close if it's not touching.

The only other option is to add a second means of securing the anchor so it hangs over farther. From the Shackle tied forward would work.
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Old 21-08-2009, 18:58   #5
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I must be thick. A larger roller will move the anchor out half the distance of the larger Roller. Won't it just move the anchor higher on the bow by half the distance?

I have to look but I don't believe the anchor is pulled all the way up on the roller to begin with??? I think, will check tomorrow, I pull the anchor up and the arm on the anchor is brought up tight to the windlass. I then tie the anchor to secure on deck. Funny how I look at it each day but can't recall.

Maybe just don't bring the anchor up so far and tie it down an inch farther out will solve th problem???
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Old 21-08-2009, 19:15   #6
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You want the anchor tied tight. If you need to add a line from the shackle going forward to make it stay out farther then that would work. It's just an extra step to securing the anchor. You really want the anchor not moving at all when the bow is pitching.

The last resort is stowing the anchor in a lazerette. It's more work but no worry and less mass on the bow. Lots of folks prefer that in a long passage anyway. Extra weight on the bow when it's nasty out isn't helpful and you won't be dropping the hook then any way. In coastal mode it's a PITA.
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Old 21-08-2009, 20:09   #7
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You can always have a custom roller made . . .
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Old 21-08-2009, 21:08   #8
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See my comments on the 'oversized anchor' thread on a cheap and easy fix for this problem.
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Old 21-08-2009, 21:49   #9
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When the fluke is very close to the bow, you can put a small piece of neoprene rubber on that exact spot on the bow. Make it thick enough so that the fluke presses into it when tightened.

The fluke support cheeks as shown on the photo from Caelestis are the best solution but costs more and takes longer ;-)

cheers,
Nick.
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Old 22-08-2009, 15:21   #10
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What type of price am I looking at for a fluke support as you are showing?
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Old 22-08-2009, 15:43   #11
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Weld a short piece of gavanized pipe on the anchor shank at a 45 degree angle so that the pipe catches under the bow roller and locks the anchor in place a few inches in front of where it would normally stop.

Are you saying the pipe is welded to the anchor shank:
before or after where the chain is attached?

does it extend beyound the shank?

is set 45 degrees up from the shank away from the fluke.

When hauling in the anchor this pipe catches under the the bow roller and lifts the end of the anchor up and away from the bow.

Thanks
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Old 23-08-2009, 08:11   #12
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For what it's worth, depending upon the width of the existing anchor roller, you could have a "shoe" made up, a 3-sided ss box 8"-10" long (rather U-shaped) that would fit between the side plates of the existing anchor roller, with sides high enough that a roller pin on the inboard end clears the side plates of the original roller. The shoe has a forward roller and aft roller and pivots on the pin for the original roller. As the anchor is released, the shoe rotates down at the front--outboard--end but the rotation is limited by the top of the aft roller that bears on the chain as it leads to the windlass. If, for example, the inside dimension your existing bow roller is 3" wide, you would make the inside dimension of the shoe wide enough for a 2" wide roller. If you use 1/4" ss plate for the shoe, you'll need to add a couple of nylon or HDPE washers to the pin of the original roller as spacers to center the shoe in the original roller, but a 2" wide roller should be more than enough for the shank of your anchor. The shoe shouldn't be very costly nor should 1/4" diameter pins or 2"wide rollers.

Just a thought
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Old 23-08-2009, 10:06   #13
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The roller articulates like this . . . .

The rollers are made by Windline.
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Old 23-08-2009, 12:03   #14
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That looks like a big Rocna, what size is it and wht is the boat? It looks very good. Thank you!!
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Old 23-08-2009, 13:17   #15
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It is a 49ft boat, and a 33kg Rocna. Every time it goes down, within seconds it feels like the boat is chained to a concrete piling. Amazing anchor!

Windline and Lewmar both make anchor rollers and "shoe" type metal brackets. I am sure you can find them at Defender or Fisheries Supply.
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