Chain size for windlass

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BudStreet
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Chain size for windlass

Our boat has a Maxwell 500 windlass on it, I believe it is original from Catalina. Just wondering if anyone with a similar boat knows what size chain it would use.

I thought it would be 5/16" and had a chandlery send me some links of G40 chain but it's too big both length and width. Now I am thinking it's 1/4", but that seems kind of small for a boat this size. Perhaps it's not. Anybody have any thoughts on this?

Thanks.

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Spanki
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our '93 has a Maxwell 500 that we put a chain gypsy on (reom Maxwell) and it only fits 1/4" HT as well, is this too small of chain? Anyone know of 1/4" HT breaking?
Russ

Spanki & {Russ 12-8-1949/9-6-2010 R.I.P Butch}
s/v Spanki 1993 Catalina 36 #1224
"Don't worry, Be happy""Sail your life away"

BudStreet
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Russ, thanks for the info. I don't know if 1/4" is too small, I guess that's the question. We have bought a 44 lb. Delta and a 44 lb. Manson Supreme, both on 5/8" rode that has about 12000 lb breaking strength and working load of I think around 4800 lbs. The working load for 1/4" seems to be about 2600 lbs. Charts for the load on the boat at various wind speeds put it up to 5000 lbs at 60 knots. So I figure a SWL of 5000 lbs is what I want, or at least would feel warm and fuzzy with. Plus the 1/4" chain limits the size of shackle you can put on and that looks like it will be the weakest link.

We anchor out a lot, we are rarely at a dock, so I like beefy, reliable ground tackle. I was hoping to hear other people's experiences with what they're doing with chain. From searching this forum I seem to see 5/16" mentioned most often. But perhaps in reality 1/4" is quite capable of holding in 60 knots winds on a 36. Anybody?

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deising
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I can't give you any concrete numbers or independent advice at this point.

However, just taking your own research at face value that the 1/4" chain has a SWL of 2,600 lbs, that is obviously considerably less than the 5,000 lb SWL you claim to want for 60 kts of wind and wave.

It is only my opinion, but I don't think I would feel comfortable with just 1/4" chain in extreme conditions. I prefer the extra weight as well as the strength of the 5/16".

Having said that, how many anchoring situations would let your anchor remain set under that kind of load?

Duane Ising - Past Commodore (2011-2012)
s/v Diva Di
1999 Catalina 36 Hull #1777
Std rig; wing keel, M35B, Delta (45#)
Punta Gorda, FL
http://www.sailblogs.com/member/diva-di/

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mutualfun
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Just a quick FYI. If anyone is looking for a Maxwell rope only winch I have our original one for sale or make a offer. Going to install a Maxwell VW winch horizontally.

Randy Sherwood
Mutualfun 1990 # 1057
T/R W/K M35a
Home. Charlotte, Mi.
Boat. St Augustine,Fl.

BudStreet
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[quote=deising;3385]I can't give you any concrete numbers or independent advice at this point.

However, just taking your own research at face value that the 1/4" chain has a SWL of 2,600 lbs, that is obviously considerably less than the 5,000 lb SWL you claim to want for 60 kts of wind and wave.

It is only my opinion, but I don't think I would feel comfortable with just 1/4" chain in extreme conditions. I prefer the extra weight as well as the strength of the 5/16".

Having said that, how many anchoring situations would let your anchor remain set under that kind of load?[/quote]

In a couple of anchor tests both the Delta and the Manson were able to sustain over 5,000 lb loads, that was the maximum they tested for. These were 35 lb. anchors, not 44 lb. So I expect the anchors are more than up for the job, it's the 1/4" chain and the shackle that concern me the most.

We're planning on heading south in a year or two and anchoring down there can be less than ideal at times which is why I am looking for really strong equipment. While I'd like to be able to use the windlass, I've been hand hauling a 35 lb Delta on 5/16 chain for years with my wife at the helm and marriage saver headsets in use and can probably pull the bigger anchors up for a for a few years yet, I hope. Spending a boat buck and a half or so on a bigger windlass isn't in the budget at the moment.

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deising
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Good for you that you can haul that chain and anchor. I can do it, too, but it is not my preference.

As a quick aside, I just posted a thread about my Maxwell Freedom 800 gearbox failing. Here's the situation; isn't it typical for things to fail at really bad time?

We were in a bayou with docks on one side of the channel and heavy mangrove trees lining the other side. We dropped the anchor 25 ft from the dock and reversed almost 200 ft to the mangroves where we stern tied (as is the local custom). The long scope was necessary due to the soupy mud bottom and poor initial holding capability, along with the 20 kt winds forecast.

When we went to leave, the wind was 10 blowing directly toward the $1.5 million+ yacht now lying alongside the dock, and just 10 ft from our anchor. Normally, the admiral is at the helm, but I really feared for her ability to stay clear of the yacht to leeward. So, I took the helm and asked her to haul the chain. It was covered in the worst smelly, sticky mud you can imagine and she was not a happy camper. Kudos to her for doing it without more than a bad facial expression.

After she got it as far as she could, we quickly traded places so I could haul until it was short-scoped. Then I had her drag the anchor away from the yacht so we could proceed with more breathing room.

We anchor is nice clean sand most of the time, but the one time the windlass failed was in yucky mud and in a precarious situation. That's boating for ya'.

Duane Ising - Past Commodore (2011-2012)
s/v Diva Di
1999 Catalina 36 Hull #1777
Std rig; wing keel, M35B, Delta (45#)
Punta Gorda, FL
http://www.sailblogs.com/member/diva-di/

BudStreet
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Hauling the anchor by hand sure isn't my preference either! When I saw the windlass on the boat when we first looked at it I was, well, almost ecstatic. But I don't want to trade convenience for a good night's sleep either.

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deising
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I was going to suggest possibly using the windlass for a primary rode consisting of the 1/4" chain and 1/2" nylon (I believe that's what the Freedom 500 fits) and a suitable anchor. Decide for yourself under what situations you will be content with the primary tackle deployed and take advantage of the convenience at those times.

Then, have a storm anchor and rode (suitable length of 5/16" chain and 5/8" nylon) and keep it in the divided anchor locker. The problem is that stowing a storm anchor on the bow other than on the main roller is not likely an easy task.

In our case, the primary tackle (which is also our storm tackle) is a 45 lb Delta with 80 ft of 5/16" chain and then 5/8" nylon, which uses the windlass and primary bow roller. The secondary anchor is a Fortress (lightweight danforth style) stowed on the bow pulpit with 20 ft of chain and 5/8" nylon in the divided anchor locker.

I agree that I would not want to trade peace of mind for convenience. Good luck.

Duane Ising - Past Commodore (2011-2012)
s/v Diva Di
1999 Catalina 36 Hull #1777
Std rig; wing keel, M35B, Delta (45#)
Punta Gorda, FL
http://www.sailblogs.com/member/diva-di/

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stu jackson c34
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[QUOTE=bstreet;3384]

1. Plus the 1/4" chain limits the size of shackle you can put on and that looks like it will be the weakest link.

2. We anchor out a lot, we are rarely at a dock, so I like beefy, reliable ground tackle. I was hoping to hear other people's experiences with what they're doing with chain. From searching this forum I seem to see 5/16" mentioned most often. But perhaps in reality 1/4" is quite capable of holding in 60 knots winds on a 36. Anybody?[/QUOTE]

Bud,

1. Yes, that's true. See our discussion about anchoring systems here, Anchor Tables: [url]http://c34.org/bbs/index.php/topic,4990.0.html[/url] Reply #6 has the tables.

2. One of our good friends, Steve Dolling & his family, sailed down the coast from Vancouver, BC and is now past Baja, in Banderas Bay. Here's his report on anchor systems, please read especially Reply #1: [url]http://c34.org/bbs/index.php/topic,5270.0.html[/url]

We have a Rocna 10 (22#) on about 35 feet of 1/4" chain with 1/2" rode. I deliberately sized our system for "ONLY" 42 knots of wind, but by using the tables for a slightly larger boat, and back checking the loads, I'm good on our boat for 60 knots, based on the "holding power" of the components I selected and installed.

I've spent many hours typing in the phrase "anchoring system" because, as you've deduced, it all has to work together. Most people don't get it, like, for instance, Reply #18 on page 2 of the link above.

One of the concepts for you to consider would be this: use a "daily" anchoring SYSTEM that's light and manageable; then have a storm system ready to go. That's what I did, but I have an unusual luxury where we sail here, as does Steve Frost and others: we simply don't have the afternoon and evening thunderstorms that most of the rest of the world has. Our weather is so darned predictable that I felt quite comfortable essentially "undersizing" our anchoring SYSTEM because we would not be exposed to 60 or more knot winds where and WHEN we anchor.

I know, someone's gonna say "Don't say never" but I've been doing this for 30 years, and know our "backyard."

I kept the "parts" as small as I could, 'cuz I don't have a windlass, most likely never will, and have a back that still works:rolleyes:. You seem to understand anchor retrieval techniques, which do NOT include needing any heavy duty manpower for success.

However, if I ever moved away from here, or did an extended trip "outside" either up or down the coast, I WOULD IMMEDIATELY go and buy a bigger anchor, like Steve Dolling's SYSTEM. I would also check the referenced tables to see if I really needed to upsize the rode and chain - maybe not if you do the research with the referenced tables.

Ron Hill, our C34 guru from back east on the Chesapeake, has been running his tidy little ship since 1988, and his suggestions on anchoring systems work for pretty much all the rest of the country.

With a little research, and the tables I've provided, you may be pleasantly surprised at what components you can put together that will work for you on a daily basis and then for a situation that would require a stronger "rig".

Rocna's website has some very good information, too.

I agree with Duane's suggestions and approach. Only thing is the storm anchor need not be kept ready to go, nor on the bow roller either.

Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 (22#)

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deising
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[QUOTE=stu jackson c34;3401]I agree with Duane's suggestions and approach. Only thing is the storm anchor need not be kept ready to go, nor on the bow roller either.[/QUOTE]

Hi, Stu. Great info, as usual. I understand you taking exception to having a "storm" anchor and rode kept on the bow. If it were truly a "storm only" anchor, used sparingly, then keeping the weight low and more amidships is a much better solution.

I was leaning more toward my own situation and tendencies where perhaps half the time or more I would want the heavier tackle as opposed to the primary 1/4 chain and 1/2 nylon we are speaking of. That is because of the frequency with which we get nasty squalls popping up out of nowhere (0200 seems to be a polular time, though ;-) ). In those cases, I would elect to use my heavier tackle and I know myself - if it is hard to do, I will have a tendency to not do it. That is why I try hard to make certain things easy to do, so I will not be inclined to choose the easier option.

Duane Ising - Past Commodore (2011-2012)
s/v Diva Di
1999 Catalina 36 Hull #1777
Std rig; wing keel, M35B, Delta (45#)
Punta Gorda, FL
http://www.sailblogs.com/member/diva-di/

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stu jackson c34
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I agree, Duane, it's not necessarily so much the "easier" option, in fact not at all.

IF you have weather that dictates the "normal" use of the heavier gear, then by all means make that your regular rig.

I was never "basically" proposing two rigs and only one for regular use. All I'm trying to point as, as you have too, is that if the engineering planning is done, then a standard ("use it daily") rig could well be much smaller and just as safe as an over sized rig without any engineering being applied. If, then, a storm rig is much beefier, then it may not need to live on the pointy end.

If, however, the difference between the "daily" rig and the storm rig isn't much because of the basic DESIGN CRITERIA for that o'dark thirty anticipated condition, then there's not too much of a choice left is there? That's what results in most C34 and C36 skippers (outside of San Francisco Bay and some right here in it) choosing 35# anchors and 1/4" or 5/16" chain with 1/2" or 5/8" rode. It's pretty much that simple.

I'm glad I don't have to raise a 35# anchor by hand regularly and we anchor out a lot, but certainly would do so if conditions required it. But I DO live here and will take advantage of every pound I can get!:D

That's also my concern in my links about the incredibly weird assortment of mismatched parts that we see on docks all the time.

And just to clarify or summarize my own system design criteria: 42 knots of wind; that's it. We do not have daily thunderstorms that would require me to have a heavier daily anchor.; our weather here is so relatively benign, and I can choose to NOT go out and anchor when there are higher winds forecast. If I lived anywhere else, there would be different design criteria, i.e., heavier winds.

Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 (22#)

BudStreet
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Lots of good ideas here, thanks for all the input. Our home waters are pretty good for anchoring, usually very good holding in firm mud, but we do get those t-storms rolling through at the worst hours. We had one nasty incident with our 28 where winds from a thunderstorm resulted in us putting a 35 Delta-5/16" chain on it for comfort factor. That is a driver for what we are looking at doing now considering that the whole east coast is subject to these storms.

I read about other people's experiences doing the ICW and Bahamas (soupy Chesapeake mud, tides, currents, weeds, thin sand over rock, lots of wind) and I am convinced that we need a few different arrows in the anchoring quiver. We also have a 22 lb. Danforth that we'll keep for really odd situations, I am told they work well in the Chesapeake mud.

I am considering using 1/4" chain on the Delta and using it as the primary when the weather is supposed to be OK and putting the bigger chain and shackles on the Manson for when it's not. That way I can use the windlass at least now and then. But the problem is that weather forecasting, at least were we live, is wrong more than it's right, and not just by a little bit. Last year the forecast was correct about 35% of the time, not a good record.

There's also this. The first time I announce that "We'll be fine with the Delta and 1/4" chain tonight" and I make the wrong call, I am dead meat with the Admiral!

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mutualfun
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Just some more info here for splicing instead of a shackle
[URL="http://www.bluemoment.com/warpchainsplice.html"]http://www.bluemoment.com/warpchainsplice.html[/URL]

Randy Sherwood
Mutualfun 1990 # 1057
T/R W/K M35a
Home. Charlotte, Mi.
Boat. St Augustine,Fl.

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deising
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Yes, there was plenty of good info presented in this thread and much food for thought.

The prudent skipper will make his or her choice based on individual circumstances.

Cheers!

Duane Ising - Past Commodore (2011-2012)
s/v Diva Di
1999 Catalina 36 Hull #1777
Std rig; wing keel, M35B, Delta (45#)
Punta Gorda, FL
http://www.sailblogs.com/member/diva-di/

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