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Re: [PSUBS-MAILIST] Main ballast.
Its a good idear - special on a ambient sub.
Many modell subs have piston tanks.
No way for a dry 1atm. boat - to much energy needed
to push the piston out in greater depths.
But allmost only a litttle force on ambient subs..
just the resistant of the seal..
Should be driven electric or pneumatic
and with a emergeny hand handle ?
regards Carsten
Pierre Poulin schrieb:
>
> Since my sub is a dry ambient,
>
> Could I use some sort of cylinder with a piston that can be moved inside
> with a screw. On one side of the piston, ambient water, on the other side,
> ambient air from inside sub.
>
> You just turn the screw one way to get water in. turn the other way to push
> water out.
>
> What about that?
>
> Pierre Poulin
>
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