Both turrets had stroboscopic cupolas as a solution to the problems of direct vision from a tank. An inner cylindrical frame carried thick glass vision blocks. Around this was a thick (30mm) armoured shell pierced with narrow slots spaced evenly. In use an electric motor spun the outer shell at such a speed that, due to persistence of vision effect, the individual slots disappeared while their armour protection (including against bullet splash) remained.
>An inner cylindrical frame carried thick glass vision blocks. Around this was a thick (30mm) armoured shell pierced with narrow slots spaced evenly. In use an electric motor spun the outer shell
pot
>trying to stop the incoming tide with a thimble
what a mess
Boy, they doing something. I'm glad they done that. Now all we got to do is whip on the jail.