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Changing mast cables

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Eduardo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Eduardo Quote  Post ReplyReply Direct Link To This Post Topic: Changing mast cables
    Posted: 15 June 2018 at 11:36
Hi

My hanse 342 is now 11 years old (2007) so it seems the time to change the little wires that secure the mast, shrouds and stays.
Could a knowledgeable sailor tell me:

1) is this the right time to change? The yacht is 11 years old and it has done over 17000nm most of them undef sailing but without stress   

2) a rigger asked me for the "mast plans". I looked on my hanse 342 dossier and I coukd not find this. Where can I fjnd this? It needs to be very accurate accordingly to the rigger...

Thanks
Hanse 342#519    Amália

Olho a terra, olho o céu, olho os mares e tudo me fala de ti
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Sea-U View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sea-U Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2018 at 13:19
Normally there should not be any wear on these. Many 40 year old boats have not changed any wires.
Sea-U is a 370e #532 located SW Norway
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2018 at 18:42
I changed mine at 8 years and i have had 4 new forstays in 13 years, partly because i have been experimenting with mast rake) and also due to furler damage . but for length surely your rigger will use the old shrouds as a guide when the mast is lowered to renew them. He will tape the rigging screws so he knows how much they were tensioned & make the new ones slightly shorter to allow for stretch
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Martin&Rene View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 17 June 2018 at 16:47
On my 2003 341, we changed the fore-stay last winter as it showed some wear near the top, but otherwise the rigger said everything else was was ok.  My boat has not done as many miles as yours.

My insurance contact says that most companies have given up on the "10 year rule", but check with yours.  He did recommend that you were able to show proof of having the rigging inspected every now and then.

Picking up on Samuel's advice, really the key measurement you want to do before you take the mast down, is check the mast rake, making sure you know how the boat is loaded fore and aft, so you can repeat the check later.  

 
Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout & shallow keel, normally based in Scotland
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robh View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote robh Quote  Post ReplyReply Direct Link To This Post Posted: 18 June 2018 at 02:14
There are many different views on this and you can have these electrically tested with special kit that indicates how worn they are, especially the joins by way of the resistance. However, this is not cheap and can cost around a third of the price of new rigging wires. I took the view last year to replace mine at 14 years old. The general consensus is this likely needs changing at 12 years old dependent on the amount of sailing that has been done and under what conditions. Your insurance company is likely to have a view on this so worth asking them. Although the old ones don’t appear much different apparently the joins can just fail when old and bring the rig down. My rigger took measurements of all the wire rigging, forestay, backstay and the six shrouds and made up new for all of these. He then fitted them when I had the mast down and when this was replaced they all fitted perfectly.

The cost for Blue Horizon was £900 in 2017. The shiny new bottle screws look good and I am now happy the rig is good for another 12 years.

Cheers,

Rob
"Blue Horizon" Hanse 341#113 Portsmouth Harbour UK
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Luna342 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luna342 Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2018 at 16:45
Hi Robh,

Can you post the measurements of your rigging if you have them?

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Andrew View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrew Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2018 at 15:46
I replaced mine after 20 years. The original rigging was still in good condition.
Initially I pulled a tape measure (the metal kind), up the mast, with the main halyard to measure the length. As this could have been +/- 20mm. I sent the Mrs up the mast with the tape measure to confirm length and it was within 10mm.
After getting them made up they were too short and I had to drop the mast and get them all made up again. I don't know where the miss-calculation came from.
I would recomend doing it in stages. Start by removing one of the inner stays and get two made up to match. Insure you stay the mast with a halyard for the time being. Then replace the outer stays the same way.
My personal opinion is: Replace the forestay, as these take a lot of punisment but wait another 5 years before replacing the rest.
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2018 at 20:18
Originally posted by Andrew Andrew wrote:

I would recomend doing it in stages. Start by removing one of the inner stays and get two made up to match. Insure you stay the mast with a halyard for the time being. Then replace the outer stays the same way.
My personal opinion is: Replace the forestay, as these take a lot of punisment but wait another 5 years before replacing the rest.


Would it not be better to start with the longest ones first so if there is a mistake one can cut the wire shorter & only put a new fitting on one end rather than throw the whole thing away???
Agree about the fore-stay renewing the forestay early though


Edited by samuel - 24 July 2018 at 20:19
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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