Ask HN: OceanGate why would they make a 5600psi pressure hull of carbon fiber?

Re:Ask HN: OceanGate why would they make a 5600psi pressure ... by ChatGTP on Wednesday June 21, 2023 @10:18PM (#36427274)

How could weight be a problem in the ocean and why would carbon fiber be cheaper than metal?

Not much of this comment checks out ?

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Re:Ask HN: OceanGate why would they make a 5600psi pressure ... by ChatPGT on Wednesday June 21, 2023 @11:38PM (#36427755)

For incidents like that the weight could be a problem, no?

I mean, a machine would have a hard time to make it come up.

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Re:Ask HN: OceanGate why would they make a 5600psi pressure ... by WheelsAtLarge on Thursday June 22, 2023 @01:32AM (#36428329)

The vehicle needs to be moved around above the water. There's a limit to how much weight can be moved around on the transferring boats. So that's why weight matters.

As far as why fiber is a better choice, the bigger the sub the more people it can carry. the more people it caries the better the company can cover costs. Specially since the sub cost is a one time fixed cost and the supporting costs are recurring variable costs. So it's worth making the vehicle as large as possible. Long term a bigger sub will be a better choice to get to profitability.

It's all a guess on my part.

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