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Old 16-12-2017, 11:13   #1
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Has anyone triggered the overload flag on a safety tether?

... or heard of someone who has?

This typically takes 900 pounds (there is some variation), so it would take an epic fall and would hurt enough to be remembered, I would think. I could not find any reports using Google.

Anything that resulted in tether or hook failure or damamge would be interesting.

I've fallen against a tether many times, but never that hard and never resulting in damage to anything. Just trying together some information regarding the seriousness of slides and falls.
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Old 16-12-2017, 11:19   #2
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Re: Has anyone triggered the overload flag on a safety tether?

Stan honey and I looked into this a few years ago. We could find only one instance ever of an overload flag being popped - on a volvo boat - bowman hit by a green water wave. And there was some suspicion about prior uv/chafe/rubbing damage to the stitching on that flag.
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Old 16-12-2017, 11:23   #3
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Re: Has anyone triggered the overload flag on a safety tether?

Quote:
Originally Posted by estarzinger View Post
Stan honey and I looked into this a few years ago. We could find only one instance ever of an overload flag being popped - on a volvo boat - bowman hit by a green water wave. And there was some suspicion about prior uv/chafe/rubbing damage to the stitching on that flag.
Any injury, or just bruises and an epic story? I would think it would knock the wind out of you, although that depends on the direction.

Clipped to a hard point or jackline?
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Old 16-12-2017, 11:31   #4
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Re: Has anyone triggered the overload flag on a safety tether?

he was clipped to a hard point. they tend to not clip to the jacklines in that sort of situation (green water on deck) because they can get washed a long way down the deck and possibly overboard. Their jacklines have 'pockets' sewn into them, which you can clip into to prevent that - but in this case he was clipped to the base of an inner stay.

The volvo bow guys are mostly real hard men. There was nothing medical reported in this case - which means no broken bones, but could have been bad bruises and would not have even been mentioned.
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Old 16-12-2017, 12:36   #5
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Re: Has anyone triggered the overload flag on a safety tether?

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he was clipped to a hard point. they tend to not clip to the jacklines in that sort of situation (green water on deck) because they can get washed a long way down the deck and possibly overboard. Their jacklines have 'pockets' sewn into them, which you can clip into to prevent that - but in this case he was clipped to the base of an inner stay.

The volvo bow guys are mostly real hard men. There was nothing medical reported in this case - which means no broken bones, but could have been bad bruises and would not have even been mentioned.
Makes sense. The forces would have been lower on the jackline and he would have gotten banged around just the same. A hard point keeps you on station, which is nearly always better. In fact, the hard point probably did a better job of keeping him on the boat.
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Old 16-12-2017, 15:25   #6
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Re: Has anyone triggered the overload flag on a safety tether?

I see a requirement for an indicator in World Sailing's Offshore Rule. In ISO 12401 there is a drop test. Is there a strength requirement somewhere, or is it now just the drop test?
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