[PSUBS-MAILIST] Drop weight

[Alan via Personal_Submersibles]

Brian,
sounds like it could be trouble.
You would have to put it in & take it out after every dive.
If you forget about it maybe you could drop your weights on the
road towing home!
Also you may be in an uncontrolled descent & want to drop as much
weight as possible, quickly, & not in 12 hours time.
   For a long time they have been using barley sugar lollies as timers to drop
long lines from various delivery devices!
Alan


Sent from my iPad

> On 13/09/2017, at 1:58 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Brian,
> You still get the points.
> Hank
> 
> On Tuesday, September 12, 2017, 7:14:42 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Oh crap, thought I had an original thought !
>  
> Brian
> 
> --- personal_submersibles at psubs.org wrote:
> 
> From: james cottrell via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] Drop weight
> Date: Wed, 13 Sep 2017 00:36:53 +0000 (UTC)
> 
> Brian,
> 
> Corrosion triggered weight release was one of the safety features incorporated into James Cameron's sub Deep Sea Challenger.
> 
> Greg
> 
> 
> From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
> To: PSubs <personal_submersibles at psubs.org> 
> Sent: Tuesday, September 12, 2017 8:10 PM
> Subject: [PSUBS-MAILIST] Drop weight
> 
> Hi All,
>               I had an idea for an emergency drop weight, and it would also work for a depth testing function.   Basically it would be a corrosion triggered release.  Every time you go on a planned dive you insert a anode type material  ( a bi-metal corrosion bolt) which would be scheduled to corrode out in what ever time frame you want.  So in addition to your regular drop weight you would also have this back up device designed to disintegrate at a calculated time.  I know it would work in salt water , for fresh water you may have to use some kind of different materials.  I have a friend who's father use to do some studies for Scripps and the devised some fish traps that would float to the surface after a certain time period.
>  
> Brian
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