Changes

戦艦・航空戦艦等が使用可能。

戦艦・航空戦艦等が使用可能。

''"The long range bombardment weapon known as the secret weapon "Type 91 Armor-Piercing Shell". This type of ammunition will spin rapidly after exiting the the gun's barrel, enters the water, and penetrate the target's armor below the waterline like a torpedo, crushing the hull of the ships. The shell's shape enhances underwater penetration while also improving the range by decreasing air resistance. Available for Battleship (BB), Aviation Battleship (BBV) etc."''

''The long range bombardment weapon known as the secret weapon "Type 91 Armor-Piercing Shell". This type of ammunition will spin rapidly after exiting the the gun's barrel, enters the water, and penetrate the target's armor below the waterline like a torpedo, crushing the hull of the ships. The shell's shape enhances underwater penetration while also improving the range by decreasing air resistance. Available for Battleship (BB), Aviation Battleship (BBV) etc.''

==Notes==

==Notes==

'''(Jul 28 2014)''' Can now be equipped to Fast Battleships.

 

'''(Oct 10 2014) '''When equipped together with large caliber guns, daytime hit and firepower bonus when attacking [heavily armored enemy ships] and [installation type bosses]

* '''2013-04-23:''' '''Implemented''' with initial game release

 

* '''2014-07-28:''' Became possible to equip on [[Fast Battleship|FBB]]

'''(Jan 23 2015) ''' Can now be upgraded into [[Type 1 Armor-Piercing (AP) Shell]], through [[Akashi's Improvement Arsenal]].

* '''2014-10-10:''' [[Damage Calculations#Armour-Piercing Modifier|Armour-Piercing Modifier]] added

 

* '''2015-01-23:''' Became '''improvable''' and '''upgradeable''' to {{Equipment/Link|Type 1 Armor Piercing Shell}}

==Akashi's Improvement Arsenal==

==Akashi's Improvement Arsenal==

==See Also==

==See Also==

[[wikipedia:ja:九一式徹甲弾|九一式徹甲弾]]

[[wikipedia:ja:九一式徹甲弾|九一式徹甲弾]]<br/>([http://pwencycl.kgbudge.com/G/u/Gun_Specifications.htm Additional EN link])

{{Equipmentlist}}

{{Equipmentlist}}

[[Category:Shells]]

[[Category:Shells]]

[[Category:Armour-Piercing Shells]]

[[Category:Armour-Piercing Shells]]