[PSUBS-MAILIST] Drop weight

[Sean T. Stevenson via Personal_Submersibles]

No. It means that you must make two distinct actions in order to release the weight at all.  i.e. a single lever pull should not be able to drop your weight, but opening a safety cover over a release mechanism would constitute the two actions, for example.

Sean


On September 13, 2017 9:03:20 AM MDT, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Sean,      Not sure I'm understanding " two distinct positive
>mechanical actions" ?    Does that mean you need to have two ways of
>releasing your drop weight ?
>
> 
>
>Brian
>
>--- personal_submersibles at psubs.org wrote:
>
>From: "Sean T. Stevenson 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 08:22:19 -0600
>
>IIRC, the rules require at least two distinct positive mechanical
>actions to initiate a drop weight release. Such a corrosion fuse would
>seem to defy that requirement.
>
>Sean
>
>
>On September 12, 2017 6:07:03 PM MDT, Brian Cox via
>Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>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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