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03-04-2018, 09:04 AM
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#1
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Member
City: Manitowoc, WI
Vessel Name: Mike Tango Whiskey
Vessel Model: Ocean Alexander 456+3
Join Date: Sep 2016
Posts: 7
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How big is your Anchor???
Hello All,
Not looking to stir the pot or get opinions on "best" anchor just looking to compile some data for my own decision making process. It would be much appreciated if you could please supply the following data. Mine is as follows:
Boat Make/model: 1995 Ocean Alexander 456+3
Boat Length: 48'
Est. Gross cruising weight: 50,000+
Anchor make/type: Original Bruce
Anchor weight: 44 lbs
Amount of chain rode: All chain (250'??)
Thanks,
Lynn
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03-04-2018, 09:10 AM
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#2
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Senior Member
City: New Rochelle, NY
Vessel Name: Jerry Land
Vessel Model: Grand Banks/Alaskan
Join Date: Aug 2015
Posts: 253
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O know. There are many previous threads regarding your question on this site.
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03-04-2018, 09:25 AM
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#3
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Senior Member
City: Comox
Vessel Model: 1989 Wellington 57 motorsailer
Join Date: Nov 2016
Posts: 281
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IMO, 44 lb Bruce is too light for a 50,000 lb boat. I just replaced my 44 lb Bruce with a 44 lb Vulcan, and while I maybe should have gone to a 55 lb Vulcan (according to Rocna's recommendations for a boat > 10 tons) I think I am OK. My suggestion, find an anchor you like, then go with the manufacturer recommendation on sizing for the weight of your boat. For example, Rocna recommends a 40 kg (88 lbs) Vulcan for your size boats (if I am interpreting their guidelines correctly).
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03-04-2018, 09:39 AM
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#4
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Guru
City: Italy
Vessel Name: Didi Mau
Vessel Model: Currently looking for next boat
Join Date: Jul 2015
Posts: 1,081
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I’m using
Quote:
Originally Posted by MTW
Hello All,
Not looking to stir the pot or get opinions on "best" anchor just looking to compile some data for my own decision making process. It would be much appreciated if you could please supply the following data. Mine is as follows:
Boat Make/model: 1995 Ocean Alexander 456+3
Boat Length: 48'
Est. Gross cruising weight: 50,000+
Anchor make/type: Original Bruce
Anchor weight: 44 lbs
Amount of chain rode: All chain (250'??)
Thanks,
Lynn
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A sixty pound Manson Supreme and a sixty pound Bruce with about 175 foot of chain. One of the things to consider is your windlass’s ability to lift the anchor and chain from depth. I have a Maxwell 1200 that seems to like the weight.
Having said this, the Manson came out of our sailboat which we cruised extensively in the Caribbean and Bahamas. The sailboat was about half the weight of our OA. Still, with 3/8ths bbb and 60 pounds I sleep well at night.
Did you get the stabilizers installed?
We are currently in the Abacos and were pleased we had them For the crossing last November.
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03-04-2018, 09:42 AM
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#5
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Guru
City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,738
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Interesting,
My boat usually has about 800lbs of boat to hold whereas yours has at least 1100lbs of boat to hold. Anchor weight to boat weight.
By that comparison it looks like you’re anchor is loaded more heavily than mine. But anchor load is usually a product of windage. And by that measure your anchor/boat combination is likely 8 times as anchor loaded as mine. But your boat is bigger than average and mine is considerably smaller.
But I think your inclination to evaluate anchor size may be revealing.
Edit to answer the post question.
I have numerous anchors but they usually fall into a range of 13 to 18lbs. So one could say my anchor is 15+lbs. That would put my anchor loading at 1100lbs to each pound of boat weight. Same as MTW. But this is just to boat weight and windage is far more relavant but I don’t know if Ive ever seen a believable windage scale. Too hard to measure.
__________________
Eric
North Western Washington State USA
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03-04-2018, 10:20 AM
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#6
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Senior Member
City: La Paz, BCS
Vessel Name: Ansedonia
Vessel Model: Californian/Carver 52CPMY
Join Date: Dec 2014
Posts: 379
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Lynn,
I went overboard, pun intended, with my new boat. I dragged with a smallish MS anchor on my last boat, almost ending up on the shore. My current boat is about 57' overall, and weighs about 60,000. I have a Mantus 105# anchor on all chain. Overkill? Perhaps, but my windlass doesn't mind, and I always put out 5-7 to 1. I sleep very well.
Cheers, Bill
__________________
"There is simply nothing more worth while than messing around in boats."
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03-04-2018, 10:24 AM
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#7
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Guru
City: Inside Passage Summer/Columbia River Winter
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 8,046
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Welcome Lynn! This is one subject that has been discussed here many many times. Do a search and have fun!!
ASD is 48ft long
48Klbs
550 ft of all chain rode.
Anchor: 77lb Rocna (best anchor in my opinion )
As stated a 44lb anchor seems a little on the light side.
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03-04-2018, 10:30 AM
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#8
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
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60 pound Manson Supreme, 200 ft 5/16 BBB chain.
40 foot Albin but light with only a 34 foot WLL.
Been having a air leak, fuel starvation problem and have dropped it 10 times in emergency situations this month with high winds and current in ICW.
Never failed me yet either in emergency or regular anchoring, pretty much drop and forget.
Also been superb in reversing tidal steams with reasonably strong currents up to 1.5 kts or so.
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03-04-2018, 11:16 AM
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#9
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Guru
City: Miami River
Vessel Name: Gotcha
Vessel Model: Grand Banks. Heritage. 54
Join Date: Aug 2016
Posts: 2,988
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Having been caught at Anchor in 50 mph storms I always buy either one size or two larger than the manufacturers recommended weight, most manufacturers are optimistic in my opinion.
Scott, you haven’t found your air leak yet?
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03-04-2018, 11:52 AM
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#10
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Guru
City: Fort Pierce
Vessel Name: Florita Ann
Vessel Model: 1982 Present
Join Date: May 2014
Posts: 1,935
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I don’t like to brag but............. oh, we are talking about anchors.
28000 lb with a Rockna 25. 44#
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03-04-2018, 12:03 PM
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#11
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Guru
City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,738
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What’s all this bragg’in about one’s anchor brand?
The question is only how big.
__________________
Eric
North Western Washington State USA
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03-04-2018, 12:16 PM
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#12
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Guru
City: Kitimat, North Coast BC
Vessel Name: Badger
Vessel Model: 30' Sundowner Tug
Join Date: Jul 2012
Posts: 5,946
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Quote:
Originally Posted by Nomad Willy
What’s all this bragg’in about one’s anchor brand?
The question is only how big.
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Then why not just use a rock?
__________________
"The most interesting path between two points is not a straight line" MurrayM
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03-04-2018, 12:22 PM
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#13
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
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modified rocks too...
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03-04-2018, 12:57 PM
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#14
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Guru
City: Alexandria, VA
Vessel Model: 2000 Wellcraft
Join Date: Sep 2013
Posts: 1,467
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42 feet, 42,000 pounds
85 pound Mantus
250 feet 5/16 HT chain G4 ISO
I'd rather have 3/8s chain but, there are other, higher, priorities
.
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03-04-2018, 12:57 PM
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#15
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Senior Member
City: Markham
Vessel Name: currently boatless
Join Date: Apr 2015
Posts: 280
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A 44 lb anchor on a 50,000 lb boat is too small IMHO.
We carry a 55 lb Rocna with 200' of 5/16" HT chain on our 20,000 lb boat.
David
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03-04-2018, 12:59 PM
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#16
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Senior Member
City: Comox
Vessel Model: 1989 Wellington 57 motorsailer
Join Date: Nov 2016
Posts: 281
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Quote:
Originally Posted by Mule
I don’t like to brag but............. oh, we are talking about anchors.
28000 lb with a Rockna 25. 44#
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Now you really have something to brag about, cuz your Rocna 25 is actually 55#.
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03-04-2018, 01:05 PM
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#17
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Guru
City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,738
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Quote:
Originally Posted by psneeld
modified rocks too...
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At least I wouldn’t need to hire a welder.
__________________
Eric
North Western Washington State USA
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03-04-2018, 01:06 PM
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#18
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Guru
City: Inside Passage Summer/Columbia River Winter
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 8,046
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Quote:
Originally Posted by Bigsfish
Having been caught at Anchor in 50 mph storms I always buy either one size or two larger than the manufacturers recommended weight, most manufacturers are optimistic in my opinion.
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100%
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03-04-2018, 01:09 PM
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#19
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Guru
City: Inside Passage Summer/Columbia River Winter
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 8,046
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Quote:
Originally Posted by psneeld
modified rocks too...
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Well I don't know. Them there Canadian rocks are just a bit heavier than USA rocks...
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03-04-2018, 01:13 PM
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#20
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Guru
City: Jacksonville
Vessel Name: Alzero
Vessel Model: Hatteras 63' CPMY
Join Date: Apr 2017
Posts: 1,548
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You are getting close to the correct anchor size when other folks in nearby slips begin to tease you about it.
You are there when you no longer "anchor" but rather "moor".
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