self inflating life jackets under zip front foulies - dangerous? - Page 3 - SailNet Community
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post #21 of 24 Old 02-07-2011
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great little video - man you have too much time on your hands
Thanks man! It really only took about 20 minutes or so. I wish I had spent more time on the 'voice'. I should have made it more - what was that word again? - oh, yeah: nasally. (see what I did there? The smiley makes everything I said prior to it ok and inoffensive.)

On a serious note though: I am really enjoying Keep Turning Left. We've got snow piles past my, well: piles around here. Seeing old Blighty in the summertime takes some of the chill off.

Thanks, and keep 'em coming.

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The sea, once it casts its spell, holds one in its net of wonder forever. - Jacques Yves Cousteau
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post #22 of 24 Old 02-07-2011
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I assume that the pressure limiter would be set so that it would not inflate the life jacket to the point that you could not breathe. I wonder just how true those stories are about people having to puncture a life-jacket with a knife so that some-one can breathe. I can believe that some-one might panic and use a knife to rapidly deflate one - but was that really necessary? I doubt it. But I might be wrong.
Even if the overpressure valve prevented the vest from going above 14 psi.... think about it... say you have a torso that is 18" wide and the area covered by the PFD bladder is 14" high... that's like having a 3528 lb. weight sitting on your chest... do you think you could breath with that much weight on your chest if you were lying down.

Then consider that the only way to deflate the vest is via the manual inflation tube, which is trapped under you jacket. The jacket won't unzip because of the pressure from the PFD inflating has jammed it and so, what options do you really have to deflate the PFD? Especially, if you're in the water (since the vest has inflated this is likely the case) and you're having trouble breathing and moving, and there is no one nearby to help you--YOU'RE IN THE WATER, REMEMBER.

Yeah, stabbing yourself in the chest to deflate the PFD is really your only good option and if you're not panicking at that point, then you've got big brass ones to go with the thick skull.

Sailingdog

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Last edited by sailingdog; 02-07-2011 at 08:44 AM.
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post #23 of 24 Old 02-07-2011
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All I am getting is an image of a middle aged pom in rubber and plastic mac contemplating having a tug.

Welshman, I too liked the video. Very clever.

Hey Dylan how goes it all ? Did you get the Google thing sorted ?

Cheers to you. Hope you do get to continue the voyage into 2011.

Andrew

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post #24 of 24 Old 02-10-2011 Thread Starter
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thanks for asking

Quote:
Originally Posted by tdw View Post
All I am getting is an image of a middle aged pom in rubber and plastic mac contemplating having a tug.

Welshman, I too liked the video. Very clever.

Hey Dylan how goes it all ? Did you get the Google thing sorted ?

Cheers to you. Hope you do get to continue the voyage into 2011.

Andrew
Google 1 - KTL 0

although I guess they have lost the revenue from the million hits a month on the youtube films....

I am also wrong on the life-jackets and am certain to die

I have also been porved wrong on the DVds of the films - I thought there would be no market for them

selling like hot cakes - so that has made up for the loss of the Google revenue

all going tickety boo and was sailing yesterday...

Wells next the sea is a great place for sailing - although the tide does rather go out

Dylan


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