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A comment on Missing Titanic Sub Faced Lawsuit over Depths It Could Safely Travel To. Parent comment

Re:Missing Titanic Sub Faced Lawsuit over Depths It Could Sa... by civilitty on Wednesday June 21, 2023 @08:33AM (#36417650)
> The advantage of CF is low weight. But who cares what a submarine weighs?

The heavier a sub is the bigger the ballast tanks have to be to compensate and the more energy is wasted on moving it, just like any other powered vehicle.

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Re:Missing Titanic Sub Faced Lawsuit over Depths It Could Sa... by zardo on Thursday June 22, 2023 @11:27AM (#36433631)
Do they even have ballast tanks? I saw mention of steel ballast they drop at the bottom.

The biggest benefit of reduced weight on this thing would be minimizing the size of the crane and surface vessel needed to deploy and recover it.

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