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-   -   How big is your Anchor??? (http://www.trawlerforum.com/forums/s43/how-big-your-anchor-37354.html)

MTW 03-04-2018 09:04 AM

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

jjorgenson3 03-04-2018 09:10 AM

O know. There are many previous threads regarding your question on this site.

Nightsky 03-04-2018 09:25 AM

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).

Gordon J 03-04-2018 09:39 AM

I’m using
 
Quote:

Originally Posted by MTW (Post 641972)
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

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.

Nomad Willy 03-04-2018 09:42 AM

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.

Montenido 03-04-2018 10:20 AM

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

Alaskan Sea-Duction 03-04-2018 10:24 AM

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:facepalm::hide::D)

As stated a 44lb anchor seems a little on the light side.

psneeld 03-04-2018 10:30 AM

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.

Bigsfish 03-04-2018 11:16 AM

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?

Mule 03-04-2018 11:52 AM

I don’t like to brag but............. oh, we are talking about anchors.

28000 lb with a Rockna 25. 44#

Nomad Willy 03-04-2018 12:03 PM

What’s all this bragg’in about one’s anchor brand?

The question is only how big.

MurrayM 03-04-2018 12:16 PM

Quote:

Originally Posted by Nomad Willy (Post 642032)
What’s all this bragg’in about one’s anchor brand?

The question is only how big.

Then why not just use a rock? ;)

psneeld 03-04-2018 12:22 PM

modified rocks too... :)

Group9 03-04-2018 12:57 PM

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
.

David Rive 03-04-2018 12:57 PM

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

Nightsky 03-04-2018 12:59 PM

Quote:

Originally Posted by Mule (Post 642029)
I don’t like to brag but............. oh, we are talking about anchors.

28000 lb with a Rockna 25. 44#

Now you really have something to brag about, cuz your Rocna 25 is actually 55#.

Nomad Willy 03-04-2018 01:05 PM

Quote:

Originally Posted by psneeld (Post 642036)
modified rocks too... :)

At least I wouldn’t need to hire a welder.

Alaskan Sea-Duction 03-04-2018 01:06 PM

Quote:

Originally Posted by Bigsfish (Post 642024)
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.


100%:thumb::thumb::thumb::thumb:

Alaskan Sea-Duction 03-04-2018 01:09 PM

Quote:

Originally Posted by psneeld (Post 642036)
modified rocks too... :)

Well I don't know. Them there Canadian rocks are just a bit heavier than USA rocks...:angel::banghead::eek:

Woodland Hills 03-04-2018 01:13 PM

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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