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Re: [PSUBS-MAILIST] double endcaps sub, stability
Thijs - I can not find the drawing on moki file - only the headline ?
regards Carsten
Thijs Struijs schrieb:
>
> Warren,
>
> I have tried to place the batteries inside the pressurehull. I sat in my
> mock-up (a frame made out of plastic tubes) and tried to find a place for
> the batteries (carton boxes). I did not succeed. So now i want to place them
> behind the pressurehull. This has the advantage that the profile of the sub
> stays slim. I want to use two 85 AH batteries for the Endura 30 Minn
> Kota's. There are 4 off them, 2 horizontal and 2 vertical under a 45 dgr.
> angle.
>
> Placing the batteries behind the pressure hull made me worry about the
> stabiliy. But when you look at an avarage car battery, and you look at the
> volume (= buoyancy) compared to the weight they are not that heavy at all.
> Anyway i made some "calculations" which i will try to send as an attachment.
> About some things i had to make a guess but most figures are extracted from
> the 3D autocad drawing.
>
> I also send a drawing to moki files. You can see the battery box and the new
> thruster configuration. Between the batteries and the MBT there is room for
> the air bottle(s).
>
> Greatings,
>
> Thijs Struijs from
> The Netherlands
>
> ----- Original Message -----
> From: "Warren Greenway" <opensourcesub@yahoo.com>
> To: <personal_submersibles@psubs.org>
> Sent: Wednesday, October 22, 2003 5:42 PM
> Subject: Re: [PSUBS-MAILIST] DElta sub (was: kitredge sub)
>
> > Hey, Thjis. Have you figured out anything on the
> > battery arrangement for the OSS hull? I was starting
> > to wonder if it wouldn't be better to follow our
> > original line of though and place the batteries in
> > external "pods". The reason I was thinking this, was
> > I was considering a hatch at the bottom of the hull,
> > for submerged entry/exit and ambient running, if
> > ambient pressure was desired.
> >
> > Warren.
> >
> > --- Thijs Struijs <thijs-struijs@planet.nl> wrote:
> > > I suppose it about the Nekton Delta.
> > >
> > > Thijs Struijs
> > >
> > > ----- Original Message -----
> > > From: "Michael B Holt" <tlohm@juno.com>
> > > To: <personal_submersibles@psubs.org>
> > > Sent: Thursday, October 09, 2003 9:45 PM
> > > Subject: [PSUBS-MAILIST] DElta sub (was: kitredge
> > > sub)
> > >
> > >
> > > > On Thu, 9 Oct 2003 07:08:09 -0600 "Adam Lawrence"
> > > <adteleka@in-tch.com>
> > > > writes:
> > > > >The Delta is like the Kittredge subs in that it
> > > has added weight to make
> > > > it
> > > > >slightly negatively buoyant when all the air is
> > > out of the two ballast
> > > > >tanks, fore and aft.
> > > >
> > > > What's the Delta? I don't recall it.
> > > >
> > > >
> > > >
> > > >
> > > > Mike Holt
> > > >
> > > >
> > > >
> > >
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> ------------------------------------------------------------------------
>
> Name: Stablility1.xls
> Stablility1.xls Type: Microsoft Excel Worksheet (application/vnd.ms-excel)
> Encoding: base64