Quote:
Originally Posted by GoldenRivet
so, with that in mind, in reality, with no atmospheric interferences such as haze or fog etc, on an absolutely perfect day an observer standing on a u-boat conning tower would only be able to see about +/- 10 miles anyhow because the ship would be quite literally hidden behind the earth's curvature beyond that distance.
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That is why American sub skippers had lookout stations built around the periscope shears.
The question then becomes "Okay, you can see ten miles. Is that the horizon, meaning the waterline of the target ship? Is it the top of the superstructure? The top of the masts? Or the top of the smoke coming from its funnels?
I'm perfectly comfortable with the 20km granted by 'SH5 Water for SH3'.