[PSUBS-MAILIST] Mushroom Valve?

[Alec Smyth via Personal_Submersibles]

Oh, sorry Alan!

On Fri, Feb 2, 2018 at 8:03 AM, hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Alec,
> That was not my idea, it was Alan's.
> Hank
>
> On Friday, February 2, 2018, 5:01:08 AM MST, Alec Smyth via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> Hi James,
>
> If they are just for surface stability, I think Hank has the best idea...
> just seal them up and forget the moving parts! If I might add to that, I
> would make up a few steel rounds that weigh the same as the net buoyancy of
> those tanks. Put the steel rounds inside the battery pods, in the
> interstices left by a rectangular battery in the round tube. You will find
> they wedge down nicely at a very low point in the sub, and will give you as
> much righting moment as the tanks. Pick rounds of an appropriate diameter
> so they're too big to pass between the TOP edge of the battery and the pod,
> that way they can't bounce up and short out the battery posts.
>
> Best,
> Alec
>
> On Fri, Feb 2, 2018 at 5:35 AM, James Frankland via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
>
> Hi All,
>
> Thanks for the advice.  The tanks are simply for surface stability and
> better towing ability.
>
> I think I will simply pipe the tanks to two Kittredge style valves in
> the conning tower.  The same as the main tanks.
>
> With vents at the for and aft of the tanks, hopefully any bubble will
> vanish reasonably quick.  I will put 3/4 inch pipe.
>
> I might put deck plates on as well.  We'll see.
>
> Starting tomorrow......
>
> Many thanks
> James
>
> On 1 February 2018 at 18:54, Steve McQueen via Personal_Submersibles
> <personal_submersibles at psubs. org <personal_submersibles at psubs.org>>
> wrote:
> > James, When you do mount, like others have said, ensure the mounting
> attachments are beefy enough you can also support some decking with these
> mounts (if you want). I have similarly placed variable ballast tubes on my
> K-250 that will also be used to support my decking.
> >
> > For improved stability I am also considering adding some smaller saddle
> tanks in the future in conjunction to the variable ballast tubes I have.
> > I think for this application Alec's arrangement on Snoopy  (1 mech. thru
> hull in tower) was clean and simple. I anticipate I will do the same.
> >
> > I have attached a couple of photos.
> >
> > Thanks,
> > Steve
> >
> > ---- James Frankland via Personal_Submersibles <personal_submersibles at psubs.
> org <personal_submersibles at psubs.org>> wrote:
> >> Hi All,
> >>
> >> I am adding saddle tanks to Jodie B.
> >>
> >> Im not 100% sure what to do with regards to the vent plumbing.  I would
> >> like to ask if anyone has any advice?
> >>
> >> I am thinking of putting 2x through hulls on the top of the main
> pressure
> >> hull.  For and aft of the tower and then piping the vents to a valve
> that
> >> would operate through them.  Similar to the existing vents.
> >>
> >> OR, fit the through hulls at the side so they penetrate the tanks and
> have
> >> a linkage of some sort that operates valves attached to the top of each
> >> tank, for and aft.  Some sort of mushroom valve??
> >>
> >> Any ideas?  What have other people done?
> >>
> >>
> >>
> >>
> >
> > ______________________________ _________________
> > Personal_Submersibles mailing list
> > Personal_Submersibles at psubs. org <Personal_Submersibles at psubs.org>
> > http://www.psubs.org/mailman/ listinfo.cgi/personal_ submersibles
> <http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles>
> >
>
> ______________________________ _________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs. org <Personal_Submersibles at psubs.org>
> http://www.psubs.org/mailman/ listinfo.cgi/personal_ submersibles
> <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
>
> _______________________________________________
> 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/20180202/07a66a75/attachment.html>