Within one km, I used to estimate the settings on my own. After some time, you don`t have to calculate precisely, you actually see the speed and can set the angle. Sure, if the target moves quickly, I prefer to rely on WO. But...
two days ago I managed to blow up a Liberty, relying on my own measurements. Torpedo was set to 3 m depth.
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lasciate ogni speranza... voi, chi entrate
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