Periscope breaks above 10 knots is that real?
Is it really true that travelling at more than around 10 knots breaks the periscope on a submarine?
I guess it must be (?) but it seems strange that after all this time they haven't figured a way to make it work at faster speeds.
Is that because of technology limitations or is it more that they don't see a need to have it working at higher speeds?
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