Anchor rope

mobgod

Petty Officer 2nd Class
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Sep 20, 2011
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179
Hi all looking for 150 feet of anchor line can someone point me in the right direction i want it to be 1/2x150 will be in Long Island sound if that can help for someone to help me decide thanks
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Re: Anchor rope

I also shop www.anchoring.com


make sure that your anchor rode is at least 7 times your depth (minimum of 5:1, max of 10:1), so if your anchoring in only 20' of water, you will need about 140' of anchor rode. if you anchor in 50' of water, you will need about 350' of anchor line.

Long Island Sound averages 60' of depth and has up to 7' of tide surge, so I would recommend a minimum of 400' of line, and maybe even go to 500'

http://njscuba.net/sites/site_li_sound.html
 

mobgod

Petty Officer 2nd Class
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Sep 20, 2011
Messages
179
Re: Anchor rope

I also shop www.anchoring.com


make sure that your anchor rode is at least 7 times your depth (minimum of 5:1, max of 10:1), so if your anchoring in only 20' of water, you will need about 140' of anchor rode. if you anchor in 50' of water, you will need about 350' of anchor line.

Long Island Sound averages 60' of depth and has up to 7' of tide surge, so I would recommend a minimum of 400' of line, and maybe even go to 500'

http://njscuba.net/sites/site_li_sound.html

Can you point out a place to get 200 feet for me that should be good
 

robert graham

Admiral
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Apr 16, 2009
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6,908
Re: Anchor rope

The 1/2" Twisted Nylon is good and strong, but the 1/2" Braided Nylon is a bit softer and easier on your hands, if you have to handle it much. Good Luck!:)
 

mobgod

Petty Officer 2nd Class
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Sep 20, 2011
Messages
179
Re: Anchor rope

The 1/2" Twisted Nylon is good and strong, but the 1/2" Braided Nylon is a bit softer and easier on your hands, if you have to handle it much. Good Luck!:)
/

OK thanks last question is 1/2 good or go 5/8 boat is 19 feet
 

joe009

Petty Officer 2nd Class
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Jun 3, 2009
Messages
100
Re: Anchor rope

go with 1/2. i agree with above you will need more rode to anchor in the sound. i have 600 ft.and have used 300 ft.plus to anchor in some spots.
 

mobgod

Petty Officer 2nd Class
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Sep 20, 2011
Messages
179
Re: Anchor rope

go with 1/2. i agree with above you will need more rode to anchor in the sound. i have 600 ft.and have used 300 ft.plus to anchor in some spots.

OK but just so we are clear I don't have a windless so 200 feet should be OK right also the above site anchoring.com seems very good but I have a anchor do I need to buy the rope and chain kit or just rope as you can tell I'm new so I need to ask a lot of questions sorry
 

JoLin

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Aug 18, 2007
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Re: Anchor rope

OK but just so we are clear I don't have a windless so 200 feet should be OK right also the above site anchoring.com seems very good but I have a anchor do I need to buy the rope and chain kit or just rope as you can tell I'm new so I need to ask a lot of questions sorry

You'll want some chain- how long is your boat? I have 15' on my boat and that's been adequate. If my boat were over 30' I'd probably prefer a boat length's worth.

I'm going to disagree with robert graham on the type of rope to use. Braided is generally not preferred for anchoring as it doesn't 'give' (stretch) as much as 3-strand, and consequently doesn't provide the shock absorption that 3-strand does. Braided can make for a 'jerky' ride at anchor.

If you plan to spend nights 'on the hook', you really need a rode length (the total length of anchor rope and chain is known as the 'anchor rode') that'll let you achieve at least a 7:1 scope (and up to as much as 10:1). If you're strictly day-tripping you can probably get away with less as long as you're keeping an eye on things.

One last thing- scope is NOT calculated strictly by the depth of water you're in. It's calculated based on water depth PLUS the distance between your boat's anchor point (the bow) and the surface of the water.

Example- if you anchor in 30' of water and your anchor attachment point is 3' above the surface of the water, your basis for calculation is 33'. You'd need 231' (7 x 33') of anchor rode to achieve a 7:1 scope

My .02
 

JoLin

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Re: Anchor rope

PS- I'd strongly suggest a boating education class - take it locally through US Power Squadron or CG Auxiliary. The people teaching the course boat where you do. Seriously, if you don't know the basics of how to figuire out how much and what kind of anchor rode you need, I guarantee there's a lot more that you don't know. How/why do you even think you need 1/2"?

This isn't a criticism- just trying to help you keep yourself safe out there. LI Sound is some serious water.
 

Ned L

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Sep 17, 2008
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Re: Anchor rope

OK, I know I'm going to get flack here, but I would consider 400' - 500' of 1/2" anchor rhode on a 19' boat quite a bit of overkill for Long Island Sound. I would consider about 200' of 3/8" or 7/16" to be more realistic. There are real reasons why not to go oversize on diameter, and why would you want to anchor in the middle of the sound?
 

shrew

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Dec 29, 2006
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Re: Anchor rope

OK, I know I'm going to get flack here, but I would consider 400' - 500' of 1/2" anchor rhode on a 19' boat quite a bit of overkill for Long Island Sound. I would consider about 200' of 3/8" or 7/16" to be more realistic. There are real reasons why not to go oversize on diameter, and why would you want to anchor in the middle of the sound?

I would completely agree. I chortled a bit on that one. I boat on the LI Sound. The average depths, yadda, yadda, yadda. There are a thousand protected coves and that's where you'll be anchoring. The average depth in most anchorages is more like 4-20 feet. You'll spend 90% of the time anchored in around 7 ft. of water. You're not going to drop anchor in the middle of the sound, even if you're broke down. Drift until you get closer to shore and drop anchor there to keep yourself out of trouble. Seatow/BoatUS will be along well before that anyway.

As for diameter, use the line manufacturers recommendation for the size and weight of the boat. 150-200 Ft of line is very common and typically more than enough. Now if you plan on anchoring in deep water to fish or dive, then that might be different, however I didn't get that impression from the OP.

I have a 28 ft. boat (8-9K) and use 200 ft. of 1/2 braided. I've had a couple of anchors drag, but yet to have a line part.
 

mobgod

Petty Officer 2nd Class
Joined
Sep 20, 2011
Messages
179
Re: Anchor rope

I would completely agree. I chortled a bit on that one. I boat on the LI Sound. The average depths, yadda, yadda, yadda. There are a thousand protected coves and that's where you'll be anchoring. The average depth in most anchorages is more like 4-20 feet. You'll spend 90% of the time anchored in around 7 ft. of water. You're not going to drop anchor in the middle of the sound, even if you're broke down. Drift until you get closer to shore and drop anchor there to keep yourself out of trouble. Seatow/BoatUS will be along well before that anyway.

As for diameter, use the line manufacturers recommendation for the size and weight of the boat. 150-200 Ft of line is very common and typically more than enough. Now if you plan on anchoring in deep water to fish or dive, then that might be different, however I didn't get that impression from the OP.

I have a 28 ft. boat (8-9K) and use 200 ft. of 1/2 braided. I've had a couple of anchors drag, but yet to have a line part.
ok thanks i'm going to order 200 feet but the about site i do need chain with the rope because i don't think i will be able to attach myself also i was told 1/2 should be good i have a 19 foot silverline
 

mobgod

Petty Officer 2nd Class
Joined
Sep 20, 2011
Messages
179
Re: Anchor rope

PS- I'd strongly suggest a boating education class - take it locally through US Power Squadron or CG Auxiliary. The people teaching the course boat where you do. Seriously, if you don't know the basics of how to figuire out how much and what kind of anchor rode you need, I guarantee there's a lot more that you don't know. How/why do you even think you need 1/2"?

This isn't a criticism- just trying to help you keep yourself safe out there. LI Sound is some serious water.

I did take a class more than one but for this they did not go over what kind of rope to use nor size thats why i'm asking also i didn't take any offence to what you sggested i love to learn i built my motor just by looking in the book and reading
 

Ned L

Commander
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Sep 17, 2008
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2,266
Re: Anchor rope

Thank you shrew for a bit of backup. Growing up my family cruised though the sound every summer on the way from NJ to Cuttyhunk, Nantucket, etc (46' 27 gross registered tons) & we carried 200' of 5/8" twisted Nylon and 200' of 3/8" twisted Nylon (which is what we used most of the time), and never had a problem. We even rode out a hurricane in Port Jeff safely - lots of other boats ended up on the beach though.
 

haulnazz15

Captain
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Mar 9, 2009
Messages
3,720
Re: Anchor rope

I completely agree, Ned. There's no way I'm storing more than 200' of anchor rode on my boat, lol. Sure, depths in the lakes I usually frequent can be over 70-80ft if you're in the middle of the channel, but normally I'm in 30ft of water or less.
 

Ned L

Commander
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Sep 17, 2008
Messages
2,266
Re: Anchor rope

mobgod - that looks fine. As said before, unless you are anchoring out in the middle of the sound for diving or something that is all you need. - If you need more than that on a 19' boat you've got bigger porblems.
 

UncleWillie

Captain
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Oct 18, 2011
Messages
3,995
Re: Anchor rope

... Braided is generally not preferred for anchoring as it doesn't 'give' (stretch) as much as 3-strand, and consequently doesn't provide the shock absorption that 3-strand does. Braided can make for a 'jerky' ride at anchor.

Agree +1

... If you plan to spend nights 'on the hook', you really need a rode length (the total length of anchor rope and chain is known as the 'anchor rode') that'll let you achieve at least a 7:1 scope (and up to as much as 10:1). If you're strictly day-tripping you can probably get away with less as long as you're keeping an eye on things.

The operative word in there is "PLAN" :)
You will need to plan on the unplanned, as in "The engine won't start, and I am driftng out to sea, and is is getting deeper by the minute.
When you really need the Line you'll Really Need the Line! :rolleyes:

3/8, 3 strand line will be fine for a 19 footer. Nice and springy.
3/8 has a breaking strength of over 3000 lbs.
You could lift the entire boat out of the water with a single line.
If the anchor could even hold the bottom, the force to break the line would likely throw you overboard if you weren't tied in.
1/2, braided line would be like hitting the end of a steel cable in the swells. :eek:

250-300 feet would be reasonable. Cut it into two pieces to make it managable, 150 ft. for a planned stop, 300 for the unplanned!
Add thimbles to the ends, and a shackle to splice them together when needed.

There is a reason that anchors are required. They are a life saving device, not a convenience. :D
 
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