...I think it's a high likelihood to be that particular incident. The only other single fatality of a two-man crew that I heard of, was the Nekton accident Vance referred to some time ago. But, that was a commercial op I assume.
The section on failure modes in "Concepts in Submarine Design", convinced me that I no longer need worry about the hull material (shell) proper. Failure would come from a weld or penetration.
Anyone know what's required in the "welder qualification test" mentioned by Dan? One pass at 100%?...ten?....fifty?
Joe
>From: "Smyth, Alec" <
Alec.Smyth@compuware.com>
>Reply-To:
personal_submersibles@psubs.org
>To: <
personal_submersibles@psubs.org>
>Subject: RE: [PSUBS-MAILIST] Welding Revisited
>Date: Wed, 25 Jul 2007 12:03:15 -0400
>
>He didn't mention the name but he did say it had been a viewport
>failure, so I assumed he was referring to the Speaker.
>
>thanks,
>
>Alec
>
>
>The contents of this e-mail are intended for the named addressee only. It >contains information that may be confidential. Unless you are the named >addressee or an authorized designee, you may not copy or use it, or >disclose it to anyone else. If you received it in error please notify us >immediately and then destroy it.
>
>
>From:
owner-personal_submersibles@psubs.org
>[
mailto:owner-personal_submersibles@psubs.org] On Behalf Of Paul Kreemer
>Sent: Wednesday, July 25, 2007 11:09 AM
>To:
personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Welding Revisited
>
>
>Alec, did you learn any more detail on that accident? When, where, what
>sub design? And what the failure was?
>
>
>
>On 7/25/07, Smyth, Alec <
Alec.Smyth@compuware.com
><
mailto:Alec.Smyth@compuware.com> > wrote:
>
>
> ... He commented that his only interaction with personal
> submersibles was as an expert witness in a lawsuit. The lawsuit
>had come
> about because someone built a sub designed to go to many
>hundreds of
> feet, but it failed at only 30 feet and one of the two crew
>died.
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