If so then question. Why so many "windows"? I thought windows were a structural weakness?
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The only glass on that sub is the windscreen on the bridge.If so then question. Why so many "windows"? I thought windows were a structural weakness?
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Related to the ballast tank, valve openings for drawing in and forcing out water and air from the ballast tanks.So what are those things that look like windows and what are they for?
Yeah, 'because if they were windows, it would only take leaving one open by mistake and...Well now. That makes sense.