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JimC View Drop Down
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    Posted: 24 Oct 12 at 11:28am
Originally posted by Hector

Originally posted by JimC


Well yes, you do have to go up a size as well on those too:-)
Or buy a drill.

I'd be rather wary of doing that. Drilling holes means (of course) that you are taking metal out of the fitting which must reduce strength. You have to be very sure that you are not just creating a new weakness.

A "perfect" shroud plate would have no more metal in the plate than is needed to cope with the maximum load transmissable through the pin. I have never done the sums to see how much reserve strength the plates have against the pins, but I hope there isn't a great deal, 'cause if there is then the fittings are heavier and thus more expensive than they need to be to do fulfil the designed task.
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Roger View Drop Down
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Here the top pin is offset to avoid the abrasion.
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Phil_1193 View Drop Down
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Originally posted by Roger

 
 
 
Here the top pin is offset to avoid the abrasion.


When the quick pin comes out the shroud is under tension and just pulls past the top pin.

I know this because it happened to me on Sunday whilst going up wind, quick pin came out, big bang and floppy shroud. Luckily the mast didn't just fall over, it stayed upright on the lowers so I was able to tie the shroud and get home!
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Posts: 3958 		Post Options Post Options   Quote winging it Quote  Post ReplyReply Direct Link To This Post Posted: 24 Oct 12 at 12:06pm
we always had the fast pins tied in with little bits of string.  Changing rake on the water is ok when you've done it a few times, and often worth it eg if you're out all day and a big sea breeze comes in or somesuch.  We would also go up on the foredeck or spi pole to change spreader angles.
the same, but different...

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Posts: 3011 		Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 24 Oct 12 at 12:59pm
Originally posted by Phil_1193

Originally posted by Roger

 
 
 
Here the top pin is offset to avoid the abrasion.


When the quick pin comes out the shroud is under tension and just pulls past the top pin.

I know this because it happened to me on Sunday whilst going up wind, quick pin came out, big bang and floppy shroud. Luckily the mast didn't just fall over, it stayed upright on the lowers so I was able to tie the shroud and get home!

I suspect that is because the terminal on the end of your shroud was not exactly what the fitting was designed for?
Maybe that fitting was designed for a talurit eye?
If you put a bush or a bunch of M5 washers on that top pin, it reduces the gap to something an eye terminal won't be pulled through, but you have to ensure the wire runs straight, not deflected by the bush, or it may fail.
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Medway Maniac View Drop Down
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 24 Oct 12 at 1:19pm
Originally posted by Andymac

 
What was the damage when the rigging failed?

The lowers restrained the mast up to the gooseneck, whereas the rest of the mast went over the side  = new mast required.  Had we not  had lowers, it would have been harmless enough once we'd stowed the kite...
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Posts: 3958 		Post Options Post Options   Quote winging it Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 12 at 4:48pm

http://sailsportmarine.com/index.php?main_page=product_info&cPath=108_126&products_id=550
the same, but different...

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