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Old 02-26-2011, 04:40 PM
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Default How much chain do I need for my anchor?

I have a 23' walk around and use a danforth anchor - how many feet and what diameter chain do I need?

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Old 02-26-2011, 05:06 PM
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You shouldn't require any more than 10-15 feet, then you want about 4 times the deepest water for overall length. At a 5:1 ratio (length to depth) the chain will help keep the ground tackle on the bottom and the length of rope will act as a shock absorber. As for chain 1/4" is fine. With the rope, you can go cheaper, with 3 strand nylon, but it won't handle very well (pay out or coil) once it gets salty. If you get an expensive 8 plait, you can just stow it and forget it, it lays well, and won't get stiff in the locker...
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Old 02-26-2011, 05:10 PM
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How much chain you need depends on where and how you anchor. If you anchor in shallow water on sandy bottoms, in non-challenging situations, you could probably get away with no chain. For your type of boat, the usual recommendation is 6 feet of 3/16 chain. If you anchor in deep water over rocky bottoms with lots of wind and in rough water, 20 feet of 1/4 chain might not be out of the question.

In general, the more chain, the better your anchor will hold for any give length of anchor rode. OTOH, more chain means more weight, more difficult anchor handling, more storage requirements, and more expense.
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Old 02-26-2011, 05:13 PM
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Simple rule should do you. Boat length +/- a little.
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Old 02-26-2011, 05:31 PM
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Originally Posted by Doug in Bermuda View Post
Simple rule should do you. Boat length +/- a little.
Yep, what he said. I have a 21' boat and 25' of chain. 9# danforth anchor and never have a problem holding. My boat has a pretty small anchor locker so I can only hold about 300' of 1/2" nylon 3-strand, so this set up works great for me. I can anchor in 120' of water with about 250' of line out. But it depends on our bottom; everything and everywhere I anchor is sandy bottom.
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Old 02-26-2011, 05:35 PM
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yep^^^^^^^^^^^^^^^^^^^

...........unless you don't have a windlass. then 15ft and an anchor ball.
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Old 02-26-2011, 05:55 PM
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The Coast Guard boating safety class I took recommended twice the boat length, 1/4 should be fine for a 23' boat.
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Old 02-26-2011, 06:16 PM
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Quote:
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Simple rule should do you. Boat length +/- a little.
x2
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Old 02-26-2011, 06:34 PM
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Quote:
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The Coast Guard boating safety class I took recommended twice the boat length, 1/4 should be fine for a 23' boat.
for blow boaters maybe, for power boaters........not practical.
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Old 02-26-2011, 06:53 PM
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for blow boaters maybe, for power boaters........not practical.

I have a 28' power boat with 75' of chain and it work just fine, as a matter of fact I use a 22lbs anchor and find I can get away with a little less rode.and I am anchoring over night around the Islands here in Southern California. most practical.

PS, I am using a Lufron windlass recommended for boats 30-40'
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Old 02-26-2011, 06:54 PM
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Agreed TSA I have a 186 laguna and the locker in my boat and most others that I've seen could never hold twice the boat lenght in chain along with hundreds of feet of rope. Ten feet of 1/4 works great for me but I will add that I always have extra rope in a water tight bag so if I ever need a little extra rode I'm ready
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Old 02-26-2011, 07:02 PM
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Maybe I'm tired, but why is this a question?

Read Chapman's, go to West Marine, do a search.....all roads lead to something around the length of your boat.

It's not about practicality, it's about safety. Whether at a lunch stop or an over-night stop.

Learn how to select, set, and pull an anchor.

Rant over. I have a 23' pilot house. I use a plow anchor, 30' of chain, and 300' of rode. That's the rig I use 100% of the time. I have a redundant set-up with a mooring ball that I take on trips so I don't have to pull the anchor every morning. I have that rig on the boat. And today I was in the shop and realized I have two extra set-ups.

Maybe I'm OCD about it....
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Old 02-26-2011, 09:50 PM
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The Coast Guard boating safety class I took recommended twice the boat length ...

46' of chain in a 23'er? Someone at the Coast Guard needs a reality check ...
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Old 02-26-2011, 09:56 PM
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What is rode?
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Old 02-26-2011, 10:34 PM
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Don't want to hijack thread, but have anchor rope question. I have always used 3/8" platted rope on my last two 25' boats with no problem. New boat (32') came with box full of 5/8" rope. Hard as hell to set anchor because rope wants to float alot due to large diameter. I could add more chain and steel anchor instead of Fortress, but really do not want to. Was wondering if anyone has used 3/8" 8 ply rope on 30ish foot boat? I have hung anchor on all boat with 3/8" rope, had to work hard to break it! The 3/8 rope is easier to handle, cheaper, takes up less room, and goes down easy. I guess I could buy some of that 1/4" AmSTEEL Blue Dyneema Rope. It has higher working load rating than 1/2" nylon.
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Old 02-27-2011, 02:25 AM
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Quote:
Originally Posted by Doug in Bermuda View Post
Simple rule should do you. Boat length +/- a little.

Yep
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Old 02-27-2011, 03:09 AM
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What is rode?
The proper nautical name for the rope/chain that connects the anchor to the boat.
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Old 02-27-2011, 03:15 AM
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You can get away with 1/2 the boat length for day anchoring only in calm water with a scope of 10:1.

For day/night anchoring the length of the boat is sufficient with a scope of 15:1 if possible for overnight anchoring.
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Old 02-27-2011, 04:27 AM
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I have a 23 WA which came with 10 feet of chain. This must have been a joke. It would hook up in calm water but never in the River. Upgraded to 25 feet and never had a problem.

Boat length +/- works well for me.
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Old 02-27-2011, 04:38 AM
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is there any way to join rode together when using a windlass. ??
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