<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><title></title></head><body><p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Another point: </span></p>
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<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Older expeditions with guest to the titanic were done with two subs. So one can update/help/locate usw. the other. </span></p>
<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Seems the Mothership here has not even an Workclass rov at least. </span></p>
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<p style="margin: 0px;">-----Original-Nachricht-----</p>
<p style="margin: 0px;">Betreff: Re: [PSUBS-MAILIST] Titan submersible missing at Titanic site</p>
<p style="margin: 0px;">Datum: 2023-06-23T13:23:26+0200</p>
<p style="margin: 0px;">Von: "Alec Smyth via Personal_Submersibles" <personal_submersibles@psubs.org></p>
<p style="margin: 0px;">An: "Personal Submersibles General Discussion" <personal_submersibles@psubs.org></p>
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<div dir="ltr">The controller is not something I would use, mine is physically much tougher and has things like O-ring seals on all the pots and switches. Nonetheless, I found it amazing the degree to which the "experts" latched onto that and anything else that was off the shelf, as if the concept of using OTS components were some sort of cardinal sin. The controller, the cabin lights from Camping World, and recycled pipes for ballast were all treated as obvious evidence of bad engineering or even a total scam. Who cares what your ballast was in a previous life, if it weighs what you need it to weigh? Moving forward we not only have to look at whether OTS parts work and are reliable, but also how they will be perceived. I'm not just ranting against the misinformed TikTok experts, I think this is an actual lesson for us. Imagine a boat ramp conversation with some local authority right now, when you explain that you control the sub with a game controller.
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<div class="gmail_attr" dir="ltr">On Fri, Jun 23, 2023 at 2:52 AM Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;">Hi Doug,
<div>my ambient sub had a game controller controlling speed, steering, ballast & a few other things. They have been tested and abused by several million kids. :) . But aside from that I had back up for all those functions so if it failed the sub still operated. And I am sure Oceangate would have done the same. ABS & DNV-GL have a principal that no one failure can cause a catastrophic event. Even though I have heard they weren't certified, they would certainly have been building to the rules.</div>
<div>All a bit strange as they were only half way to the wreck.</div>
<div>If the hull had have imploded it would have failed at maybe 1/4 of its crush depth. If power failed they would have gone to the surface, & should have had surface coms that would work with a back up battery.</div>
<div>Alan</div>
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<div>On Wed, 21 Jun 2023 at 12:41 am, Douglas Suhr via Personal_Submersibles</div>
<div><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div>
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