[Public-List] Main Halyard.

[John Birch]

I agree with Don. When we refitted Sunstone, we stuck with wire top rope 
tails and ours terminate above the winch. We never need to pump them up. did 
the whole look at Spectra, Kevlar etc and decided it was circular. Having 
the rope tail terminate just above the winch keeps the winch from getting 
abraded and the cost was peanuts compared to the exotics.

Got an Alu masthead shive, with bronze oiless bearing pressed in, it too 
wasn't much and we have an A-37.

Stick with wire, great bag for the buck. Want even less stretch, go up one 
size on the wire but be careful to maintain the minimum 12:1 radius on the 
wire to shive or the wire will start to breakdown.

You need an even bigger radius for the exotics

Cheers,

John


----- Original Message ----- 
From: "Don Campbell" <dk.campbell at xplornet.ca>
To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
Sent: Friday, February 21, 2014 6:18 PM
Subject: Re: [Public-List] Main Halyard.


> Hi Bobby:
>     Most are for the change but I would offer some opposition. It depends 
> upon what you do on your boat and how much money you want to put into line 
> and the change,  and how much you value sail shape for a reasonable cost. 
> Check out the prices and stretch of the line that you think you want to 
> buy for a halyard. You will need about a bit more than 70 feet if you use 
> a winch on the mast and about 10 feet more if you lead it back to the 
> cabin top. If you have 3% stretch on that line, (3 feet in 100 or 1 foot 
> in 33'),  then you will have about 12" of stretch when cleted on the mast 
> and almost 16" when cleted to the cabin top. If that amount of stretch is 
> OK for sail shape differences, then go ahead, otherwise consider staying 
> with wire which does not stretch that much.  UV does not do much to wire 
> and it does age line. Personally I think halyards with 1% stretch are too 
> expensive, and any more than 1% is not good enough to maintain sail shape. 
> I have had the main halyard last more than 15 years and am sure I would 
> have replaced line halyards in that time due to UV wear and chafing from 
> use. As it is , I have rope tails and have replaced them but there is no 
> stretch below the winch, and even if there were it would be on less than 
> 1' of line. I can cope with up to 10% there.
> Don
> On 2/21/2014 3:26 PM, Bobby wrote:
>> Anyone have any notions about switching from wire-rope to just rope for 
>> the main halyard. Does one have to change the sheave?  Its one of those 
>> big over 6" unusual material...brown cloth almost looking things.
>>
>> Any suggestions would be appreciated.
>>
>> Thanks,
>>
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