From: MerlinSub@t-online.de
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Viewport
Date: 03 Feb 2007 09:39 GMT
Two viewports in the bow endcap are calculate to about 12.000 USD including
the stainless steel frameholder without installation . And because of the
divetanks the distance to an object in front is around 4 meters = 13 feet
to the viewer. Viewport are useless as higher underwaterspeed than 1 knots
or so. And the euronaut can not drive so slow that you can navigate to
viewports.
Thats the reason that I decide to get with a video system.
I go with videocameras and big monitors. Like the bridge on Startrek
Enterprice.
One videocamera is abt.100 USD and they are close to the bow. I will have
at least 6. One in the bow. 3 in the mast to generate panoramic view. One
looks to the propeller and one is in the diver compartment. We can switch
the four monitors in the bridge as we like. On a bigger Psub sonars ar more
common for navigation. So the sub will get one forward looking sonar and
one side scan sonar - and one echosounder of course.
A 180° dome with 570 mm diameter and safe for 200 m operating deep is
availabel via Emile or me and will cost something around 1000-1200 euro.
Base material is 40 mm strong and minimum tickness on the highest point
is about 15 mm. Comes without classification. You can have them with
certificate also but than add just a zero to the price figures. Other dome
diameters are possible but more expensive because we have to make another
tool.
best regrads Carsten
"Øystein Skarholm" <skarholm@gmail.com> schrieb:
> Thank you very much Carsten, John and Andy. How come you, Carsten,
> choose to have no viewports at all on the Euronaut?
> Are there any web sides where I can go and have a look at viewports?
> Maybe with info about price as well. I think there is a lot of
> considering to be done.
>
>
>
>
>
>
> On 2/2/07, MerlinSub@t-online.de <MerlinSub@t-online.de> wrote:
> > Di = 27 inch or 686 mm (clear view) for 300 meter
> >
> > s/d1 = 0,21 and 10°
> > so s = Tickness = 0,21 x 686 = 144 mm or about 6 ich strong acrylic.
> >
> > Outside Diameter of glas should be between 1,25-1,5 of Di
> > = 34 - 40 inch.
> >
> > Calculate to Germaninscher Lloyds rules.
> >
> > Dome will be better.. 0,034 x 27 = about 1 inch thickness.
> >
> > Best regards Carsten
> >
> > "Øystein Skarholm" <skarholm@gmail.com> schrieb:
> > > Does anybody know if flat view ports can go as deep as 250m -
300meter.
> > > The view port size is off course critical here. I am thinking of a
> > > view port size approximately 27 inch.
> > > Where can I find material properties for strength calculation on
acryl ?
> > >
> > > What is the best material for view ports anyway.
> > > Hope somebody knows the answer or where to find the answer.
> > >
> > > Thanks
> > >
> > > --
> > > Vennlig hilsen
> > > Øystein Skarholm
> > >
> > >
> > >
> > >
> > >
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>
> --
> Vennlig hilsen
> Øystein Skarholm
>
>
>
>
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> PSUBS.ORG
> PO Box 53
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