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6mm or 8mm chain and Bow Rollers

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dkstenson View Drop Down
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    Posted: 11 August 2013 at 8:35am
Posted this on another forum, but then thought there are probably experts here who may help?
 
Nevilles site is a boon for information, but cant find what I required there... Here goes..
I am guessing (Hoping) Andy will be able to advise most fully.
 
Regards the Bow Roller..Smile I am going to have to source a new one, and would like to get one that corrects the anchor on retrieval... Anyone know of where to obtain such?
 
Anyone know the route for establishing the best chain size to carry considering many variables?
Boat is a 25ft Semi Dispacement Arvor.
Total weight is 2.75 Ton.
Can drop anchor anywhere between 30ft to 170ft
Carry 600 ft of Anchor rope, and this has been spliced to 75ft of 8mm Chain..
What I would rather do if I can, is rid the 8mm chain and use 6mm chain... (A few reasons, including back issues, which prohibit hand lining 75ft x 8mm chain with 10kg anchor)
I know of same boats (Arvors), a few use 8mm, a few use 6mm (Hardly ever see anyone using 7mm, which would be my choice if readily available)..
Unlikely to be anchored in a tide much stronger than a few knots..
Have a windlass and also retrieve using Alderney ring, depending on circumstances etc.. Which leads to another question..
When using the Alderney ring method, where do people tie off to?
My rope comes from rope locker, is tied to Samson post and then runs through the bow roller... It has to run through the bow roller, there is no other option...
This was the result of retrieving 450ft rope + 75ft 8mm chain, and 10kg anchor in a fairly big tide yesterday.
 
I am loathe to start tieing off anywhere other than the bow as I have been told many times that if the anchor is locked in then worst that can happen if bow tied is the boat spins around the anchor (As has happened). Tieing further down the boat length can lead to sinking ultimately if the anchor is locked in...
Advise?
Having used the Alderney ring method on my previous boat (75ft 6mm chain) I am imaging the extra weight etc of the 8mm and drag factors have been the cause of this event.
 
Cheers
 
Dave
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sean.clarke View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sean.clarke Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:22am
Hi Dave,
   don't source new - get this one straightened and beefed up - thats exactly what I did with mine.Probably won't end up much cheaper, but it will be more substantial.

Ohh, and you are definitely safe tieing around the bow, even if the anchor is wedge you won't spin, well not if you have out the proper amount of rode and are no more aggressive then the 45' angle, you'll turn (gently) but certainly won't spin.

You Arvor should have 8mm chain, the 6mm chain is not really heavy another and fitted due to cost savings - I did the exact same (1x roller and 2x anchors and chain - although one of those was replaced by the splicing company), I uprated to 8mm chain when I replaced it and never looved back, holds much better.

Shame, cos I have just had a garage full of it.... gave it away
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dkstenson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dkstenson Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:40am
Cheers Sean,
 
Any idea where or who could do such a job like straightening this bad boy?
 
Sean... I have posted this same question on the other forum, and this is where I am getting confused about length of chain...
 
I understood 2 to 3 times boat length in chain was optimum.. Its now been sugegsted that 10ft to 15ft is ample....
 
Lots of google searches suggest the maximum requirement ever needed is likely to be 1 x boat length..
 
Its a quandry... so much conflicting advise..
 
I have spoken to and text a few people and it appears we are all using 50ft to 80ft chain..
 
If I can get away safely with no issues or problems, then I can cut off 50ft of 8mm chain.. Smile
 
Cheers
 
Dave
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sean.clarke View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sean.clarke Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:42am
When you say"corrects the anchor on retrieval" do you mean sets the right way up? if so then this is not a roller function but an item you add inline with the anchor. I would upload a photo, but I am getting lots of errors from the site this morning (this site or latest chrome ?). It is a curved bar you can buy or perhaps make and they certainly work, the curved flips it up a certain way as it approaches the roller and you anchor is always correctly pulled home.

Lots of forum site issues this morning - this is the 3rd time I have types this.
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sean.clarke View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sean.clarke Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:46am
You'll get people opinions which is never a good thing - I would say, for your size boat 1x or 1.5x would be enough as per RYA or COP guidance. 10-15ft is just over half the length and I wouldn't go that light.

Holly Anna was 9.5m, I purchase 30m of 8mm chain and cut it in half to give me some "spare". always did me well, even when I anchored the overfalls on a spring (trying to hold just over that bank to get a fish every drop or two Cool).

I have a guys number, he lives just down the road from me (just up the road from Swanwick matina) he did a spanking job.
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sean.clarke View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sean.clarke Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:49am
Does this work? Look familiar?

https://lh5.googleusercontent.com/-8fJLAOcEQOk/UZf8hmnQd2I/AAAAAAAAALY/vQYdIF0CNPw/w1105-h829-no/2010-06-23+20.00.41.jpg

https://lh5.googleusercontent.com/-lq2GmUY8bd0/UZf8hp3GrII/AAAAAAAAALY/39D47Cvh-84/w1105-h829-no/2010-06-23+20.00.48.jpg

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wapello View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wapello Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 9:58am
Google C J Capstan Brighton i,ve got one on my boat one turn of rope up it comes i even pull my pots up with it, there gear is the nuts have a look.
Boat Name:ROSIE. CH 10.Colin

call sign:mmvs7

mmsi:235036653

A woman who has never seen her husband fishing,
Doesn"t know what a patient man she married.
Flying Chequered Flag.
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sean.clarke View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sean.clarke Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 10:01am
Just checking details - repair, polish and substantial reworking to beef it up (doubled the thickness of the load bearing areas was £250
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wapello View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wapello Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 10:10am
75ft of chain, i use 6-8ft of chain big chain the links are 15mm dia, and the link is about 3.5mm long heavy, but since i don,t touch it, it comes up 50ft a minute at the press of a button.
Boat Name:ROSIE. CH 10.Colin

call sign:mmvs7

mmsi:235036653

A woman who has never seen her husband fishing,
Doesn"t know what a patient man she married.
Flying Chequered Flag.
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dkstenson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dkstenson Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2013 at 10:21am
Sean,
 
I remember you doing that and seeing the results... Yes, mine now looks almost identical..
 
A friend next to me in the marina has a 215 Arvor... His bow roller is wider than normal, and he has a wider cut away roller.. He brings his anchor up and it meets the roller and automatically spins over to sit the correct way up... Its brilliant... He does it all from the cabin every time (Unless the anchor has tripped).
 
I have studied it and I reckon its down to the fact the roller depth/angle is a lot shallower and wider than a standard roller design.. It allows the shaft of the anchor to engage over the roller, then spin so the weight is under, thus ensuring its the correct way up..
 
Wapello: Thanks for that link... I had viewed the site before and had considered a capstan, but as I have only used the fitted windlass once or twice so far think maybe I will get some use out of it before explaining to the missus why I need to splash out again.. :-)
 
Cheers
 
Dave
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