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Old 09-11-2016, 09:11 PM   #101
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Cal,
My line was not chaffed significantly. Stained and kinda worn out looking. Wanted a sacrificial end to the rode. The mother rode should last a long time. Been almost 10 years now.
Was your "calm day yachtsman" comment meant to be abrasive? It was.
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Old 09-11-2016, 09:11 PM   #102
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Ted,
Paint it yellow!
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Old 09-11-2016, 10:05 PM   #103
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I've never had much faith in light weight anchors, I much prefer an anchor one or two sizes over what the manufacturer calls for especially in high winds with a chain rode. With a heavy rode you might not even need the anchor. LOL. Our navy uses heavy anchors on their large ships.Just my SSO.
That`s a popular view, but I wonder. Anchor mfrs want to sell us as much anchor as they can, I doubt they err on the light side when making recommendations. No doubt some boats of heavier or atypical design or build merit fine tuning the mfr recommendation, but automatically going 1-2 sizes greater without an analysis doesn`t make sense to me.
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Old 09-11-2016, 10:11 PM   #104
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Ted,
Paint it yellow!
Eric,
No, paint the engine grey (old Gray Marine, DD), see if
I can get the parts at DD pricing.

Ted
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Old 09-11-2016, 10:13 PM   #105
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Saw this beauty when out about three weekends ago. Wouldn't think she was only 10 years old!

https://en.wikipedia.org/wiki/RV_Hugh_R._Sharp
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Old 09-11-2016, 10:13 PM   #106
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Bruce,
I agree and maybe you've touched on something. Could be that more than a few anchors on trawlers are bigger than need be. And manufacturers may be the reason .. or part of the reason anchors seen are anchors big.
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Old 09-11-2016, 11:26 PM   #107
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That`s a popular view, but I wonder. Anchor mfrs want to sell us as much anchor as they can, I doubt they err on the light side when making recommendations. No doubt some boats of heavier or atypical design or build merit fine tuning the mfr recommendation, but automatically going 1-2 sizes greater without an analysis doesn`t make sense to me.
Bruce, I think your right, anchor manufacturers don't err on the light side. But I don't know how many times I've recommended an anchor using the manufacturers sizing chart only to have the customer think he needs to go a size larger.
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Old 09-12-2016, 01:48 AM   #108
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Bruce, I think your right, anchor manufacturers don't err on the light side. But I don't know how many times I've recommended an anchor using the manufacturers sizing chart only to have the customer think he needs to go a size larger.
Thinking back, when I was buying the current anchor (at the Sydney Boat Show direct from the manufacturer himself) we fell between sizes, and opted for the larger one, which was the advice, and I`m sure, the right choice.
In the subsequent insurance survey, the surveyor described the anchor as "big". Which was fine by me. I can imagine a scenario where the manufacturer adds a margin to be sure,a conservative retailer suggests one size larger, the buyer adds another step up size on top of that.... you get the idea. I`m comfortable taking the manufacturers advice. It has worked, so far.
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Old 09-12-2016, 05:39 AM   #109
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As folks are usually lazy , the simple solution to sizing the bow anchor could be ,,,

1. How does it fit & enter the bow rollers?

2. Will my windlass lift it with some chain and a ball of mud with out letting the white smoke out?

The only downside to a LARGE anchor is cost ,

and as the better brands have decades & decades of use ,BIG ,, used is EZ to find.
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Old 09-12-2016, 06:15 AM   #110
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Cal,
My line was not chaffed significantly. Stained and kinda worn out looking. Wanted a sacrificial end to the rode. The mother rode should last a long time. Been almost 10 years now.
Was your "calm day yachtsman" comment meant to be abrasive? It was.
No, not at all. Literally perhaps, but not figuratively . If you just anchor under calm conditions, and never are subject to storms, then chafe protection for your rode is not really a concern. But it is if you are in areas prone to thunderstorms and microcells, or tropical weather events.

As for anchor size, the manufacturers publish a range, depending on the windage and weight of the boat, you pick from that range. So with a big fat high profile powerboat, I like to error on the largest size with my boat length within its range. I agree that it has to be within the windlass capacity (which shouldn't be an issue on a well found boat, and within the handling capability of the humans on board for the day when no power assistance is available. Beyond that, I like Steve Dashew's view of anchor sizing "you know your anchor is big enough when people on the dock laugh about how large it is".
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Old 09-12-2016, 06:21 AM   #111
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Bruce, I think your right, anchor manufacturers don't err on the light side. But I don't know how many times I've recommended an anchor using the manufacturers sizing chart only to have the customer think he needs to go a size larger.
Do anchor manufacturers have a secret formula they use to determine the correct size, or have they done loads of testing they're not talking about? When all the new generation anchor folks came up with their designs, how do you suppose they came up with their sizing charts? Best guess? Or are there some objective algorithms out there we might all be interested in?
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Old 09-12-2016, 06:23 AM   #112
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No, not at all. Literally perhaps, but not figuratively . If you just anchor under calm conditions, and never are subject to storms, then chafe protection for your rode is not really a concern. But it is if you are in areas prone to thunderstorms and microcells, or tropical weather events.
No sharp stuff on the bottom?
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Old 09-12-2016, 06:24 AM   #113
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No, not at all. Literally perhaps, but not figuratively . If you just anchor under calm conditions, and never are subject to storms, then chafe protection for your rode is not really a concern. But it is if you are in areas prone to thunderstorms and microcells, or tropical weather events.
Like to add that the opposite is also true. If you anchor under conditions where the wind and current can turn dead calm and the boat floats without pulling on the rode you have to worry about the loose rode wrapping around debris or coral on the bottom and chafing.

I haven't seen any statistics but I believe this is a more frequent problem then the rode breaking due to excessive pull.
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Old 09-12-2016, 06:47 AM   #114
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Thinking back, when I was buying the current anchor (at the Sydney Boat Show direct from the manufacturer himself) we fell between sizes, and opted for the larger one, which was the advice, and I`m sure, the right choice.
In the subsequent insurance survey, the surveyor described the anchor as "big". Which was fine by me. I can imagine a scenario where the manufacturer adds a margin to be sure,a conservative retailer suggests one size larger, the buyer adds another step up size on top of that.... you get the idea. I`m comfortable taking the manufacturers advice. It has worked, so far.
Bruce

My latest anchor is a tweener on the charts as well. We have a fly bridge enclosure (higher windage) so opted for the heavier chart size model (Vulcan).
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Old 09-12-2016, 07:04 AM   #115
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That`s a popular view, but I wonder. Anchor mfrs want to sell us as much anchor as they can, I doubt they err on the light side when making recommendations. No doubt some boats of heavier or atypical design or build merit fine tuning the mfr recommendation, but automatically going 1-2 sizes greater without an analysis doesn`t make sense to me.
Bruce

I can see how you may believe that statement and it may very well be true. I come from the school that the manufacturer would recommend a lighter weight anchor to make a statement :" look how much my anchor is so much better than my competition, I recommend fifty pounds and the competition uses eighty pounds, mine is more efficient". In any event I like to err on the safest side.
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Old 09-12-2016, 07:46 AM   #116
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Pgitug

Sorry I should have stated navy large ships.

Actually you did.
I just saw that photo and found it interesting the size of Fortress on that vessel.
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Old 09-12-2016, 07:54 AM   #117
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Like to add that the opposite is also true. If you anchor under conditions where the wind and current can turn dead calm and the boat floats without pulling on the rode you have to worry about the loose rode wrapping around debris or coral on the bottom and chafing.



I haven't seen any statistics but I believe this is a more frequent problem then the rode breaking due to excessive pull.

I find it interesting how few boaters are prepared for a fouled anchor.
A friend of mine could not raise his anchor so he called Sea Tow who then called a diver out. His anchor was fouled on an anchor and a pile of 3/8 chain that someone lost. The cost was around $400 and the diver got the lost anchor and chain. Now here's the thing. This happened in Florida and he was anchored in 12 feet of water. As I told him, if he had a fin and snorkel set on board he would have saved five hours, $400 and would have gotten a new to him anchor and chain.
Never go anywhere without a snorkel set.
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Old 09-12-2016, 08:18 AM   #118
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The first anchor I bought for Magic was a 45# Manson Supreme. It held in all conditions. Then we were hit by a squall while anchored with winds high enough to make me nervous. The anchor held just fine but I decided to go bigger after that event. I upgraded to a 60# Manson Supreme.

The 60# Manson did just fine until it began to rust. West Marine agreed to take it back and I replaced it with a 73# Rocna. Will this ever end? Maybe I need a bigger boat.
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Old 09-12-2016, 09:11 AM   #119
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Bruce

I can see how you may believe that statement and it may very well be true. I come from the school that the manufacturer would recommend a lighter weight anchor to make a statement :" look how much my anchor is so much better than my competition, I recommend fifty pounds and the competition uses eighty pounds, mine is more efficient". In any event I like to err on the safest side.
Very good point and by the same token a boat owner can make the same clain or statement. "Look at my tiny anchor. It's half the size of yours so it's obviously twice as good."

There may be too many stories about dragging on TF. I'm still think'in setting and penetration is more important ... but holding power gets the press.

Also there's the appearence of being wise. Being safe is indeed wise and the bigger is better is joined at the hip with the image of being wise and that rests heavily on the assumption of being experienced. Wise and experienced together is a big draw. Nobody wants to appear foolish.

Howard,
Shoulda just had the Supreme regalvanized. But indeed you did get the problem solved. No loss though as both anchors are about the same.
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Old 09-12-2016, 10:35 AM   #120
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Eric. I know a couple of guys with tiny anchors proudly displayed on their bow and when asked how does the anchor preform they answer great. Further examination shows they anchor in the bay and seldom overnight and never in a big blow.
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