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Re: [PSUBS-MAILIST] safety chain



Ian you make a good point on a flooded condition
A 1/4 will get me to a 7000lb break and comes in at about 40lbs of cable.
Lead is cheaper but I would rather the rescue chance
 
In lake Superior the diver can freeze but not from fear
constant temp of 39F
 
In a message dated 2/5/2009 1:56:30 P.M. Central Standard Time, irox@ix.netcom.com writes:

I think you need to pick a cable that can lift your submarine when it's
full of water.  It's going to be so disappointing when you are in a half
flooded submarine thinking you are about to reach safety and the cable snaps.

Of course, if this is just for recovering the sub when the controls fail
or the diver 'freezes' with fear or health problems, then you just need to
lift your negative buoyancy weight.

Ian.

-----Original Message-----
>From: Recon1st@aol.com
>Sent: Feb 5, 2009 2:11 PM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] safety chain
>
>
>I am thinking on building a safety cable on my sub.
>What I am thinking of is a 350+' cable spooled up on board. The  lose end
>will have a line
>attached and 350' + line spooled on a float. If need be the float  would be
>released, with the
>surface crew picking it up and then pulling up the cable. Hook  cable on a
>winch and pull me
>up. I really hate getting wet anymore.
>
>My question is any recommendation on the strength of the cable. I  will be
>around 3ton dry
>weight but for sure that would be a little heavy. Am not planing on  lifting
>any part of the
>sub out of the water just close. A diver could secure lines  then
>
>My gut tells me a 1/8 1700 lb. should do it but sure would like  some
>thoughts from the
>group
>
>Dean
>p.s have been building control surfaces of late. will take and post  some
>pics soon
>all I will say is, a little is good more is better  hehhe
>
>
>
>
>
>**************Stay up to date on the latest news - from sports scores to
>stocks and so much more. (http://aol.com?ncid=emlcntaolcom00000022)




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