The Type 1 Armour-Peircing Shell is an improved version of the Type 91 Armour-Piercing Shell that was meant as a secret weapon for long-ranged shelling. This is AP shell is a further improved version.<br>
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This what-if upgrade of the AP shell has a larger bursting charge and a redesigned cap.<br>
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It was designed to cut through the water to hit enemy ships below the waterline like a torpedo. Of course, dye caps were also included to help spot the shots.<br>
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It can be used on battleships, aviation battleships and fast battleships.