[MHml] mast woes

[Michael Conley]

Hi Peter
     Long rod sections stretch, you can go to a larger size to stop it, or you can put a link at the spreader.
  Mike

Peter Southwood <peter.southwood at telkomsa.net> wrote:
          Hi Mike, 
  Whar is the point of cutting the span in half in this way?
  Cheers,
  Peter
    ----- Original Message ----- 
  From: Michael Conley 
  To: Informed discussion of multihull issues 
  Sent: Monday, October 16, 2006 10:59 PM
  Subject: Re: [MHml] mast woes
  

  Hi Bill
     I have been following your problem with your diamonds. I had a similar one. Undersize wire on the diamonds . Solution cut the wire at the spreaders add an eyy and fork and you cut the span in half.
  Mike

Bill Gibbs <BillG at GibbsCAM.com> wrote:
  The riggers and mast guy explain that one goal in pre-tensioning diamonds is to avoid a slack side. And I have never noticed slack
diamonds on Afterburner. Certainly there is a loaded and unloaded side. My stays are a different story. We even have a "slack
sucker" for the stays.

Bill

-----Original Message-----
From: multihulls-bounces at steamradio.com [mailto:multihulls-bounces at steamradio.com] On Behalf Of Chris Ostlind
Sent: Monday, October 16, 2006 12:02 PM
To: Informed discussion of multihull issues
Subject: Re: [MHml] mast woes


----- Original Message ----- 
From: "Bill Gibbs" 


We are not looking for prebend however, as much as avoiding slack diamonds 
on the unloaded side.


Slack diamonds as in: Not able to slip their fixturing points on the 
spreaders, or what? How do you avoid any slack side diamonds, Bill? If the 
leeward shrouds are somewhat slack, aren't the leeward diamonds also slack 
to some lesser degree as well?

I guess what I'm saying is that the load has to go somewhere, and if it 
isn't in the rig, it has to be put through the forward beam. I could be way 
off base here, but I suspect that all these components are stretching and 
flexing to some extent and they relieve the direct loadings in that 
adaptable fashion.

Chris


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