[PSUBS-MAILIST] Titan submersible missing at Titanic site

[Antoine Delafargue via Personal_Submersibles]

Hello Carsten,

for the thickness, I read that the viewport should have been rated for
1300meters depth, so I think that the designer designed for a short term
critical pressure of 5200m/52MPa, and perhaps thought it would be fine
using a 1.3X margin to get to 4000m rather than the 4X margin we can find
in Stachiw book and PVHO rules for low temperatures (to be checked but I
believe it is 4x).

regards
Antoine

On Fri, Jun 30, 2023 at 4:03 PM MerlinSub at t-online.de via
Personal_Submersibles <personal_submersibles at psubs.org> wrote:

> I check out some pictures and based on a given length of 6500mm
>
> I come to the following rough figures:
>
>
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> Diameter hull                                   1600 mm
>
> Diameter front porthole outside         700 mm
>
> Diameter front porthole inside            466 mm
>
> (these diameters indicate that the porthole could be original designed as
> entrance..)
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> Now idear about the thickness of the acrylic
>
> - but will check out PHSME about standard flange angles tonight.
>
>
>
> Carsten
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> -----Original-Nachricht-----
>
> Betreff: Re: [PSUBS-MAILIST] Titan submersible missing at Titanic site
>
> Datum: 2023-06-30T15:31:14+0200
>
> Von: "MerlinSub at t-online.de via Personal_Submersibles" <
> personal_submersibles at psubs.org>
>
> An: "Personal Submersibles General Discussion" <
> personal_submersibles at psubs.org>
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> For me it looks like the biggest diameter porthole used in that deep.
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> Has somebody here inner and outer diameter and the thickness?
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>
> Carsten
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> -----Original-Nachricht-----
>
> Betreff: Re: [PSUBS-MAILIST] Titan submersible missing at Titanic site
>
> Datum: 2023-06-29T21:11:55+0200
>
> Von: "Jon Wallace via Personal_Submersibles" <
> personal_submersibles at psubs.org>
>
> An: "Personal Submersibles General Discussion" <
> personal_submersibles at psubs.org>
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> The pictures of Titan that I see in water show 16 bolts holding the
> retaining ring in place.  See attached photo.
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>
> Jon
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> On Thursday, June 29, 2023 at 11:49:18 AM EDT, MerlinSub at t-online.de via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
>
> I have seen a video how they make the carbon cylinder and can imagine that
> the boat imploded in longitudinal direction.
>
> Create a massive shock wave with push the window out (not in). As I saw in
> another video the window was hold by only 4 bolts outside.
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>
>
> All titan parts in the video seems undamaged.
>
>
>
> Carsten
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