[PSUBS-MAILIST] drop weight

[Alec Smyth via Personal_Submersibles]

Hi Hank,

The drop weight contributes to transverse stability. Be sure to calculate
what happens to stability when it's dropped. If you have a large weight, it
is quite possible the sub's new center of gravity could end up above the
center of buoyancy.


Best,

Alec

On Sat, Nov 12, 2016 at 10:54 PM, via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hank,
> Yes, there is a rule.  The drop weight must be heavy enough so that if all
> compartments were fully flooded except for the main cabin, the release of
> the drop weight would cause the vessel to rise to the surface.  "All
> compartments" includes battery pods and anything else that could take on
> water.
> Jim
>
> In a message dated 11/12/2016 7:49:08 P.M. Central Standard Time,
> personal_submersibles at psubs.org writes:
>
> Can someone tell me what the proper weight of a drop weight is.  There
> must be a rule.
> Hank
>
>
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
>
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20161112/0efa3bdb/attachment.html>