Board Thread:Fleet's Prepared-ness/@comment-27215003-20151114144725/@comment-26289480-20151116225302

What situation requires an ap shell? 95% of the time you use a BB, you will be using 2 cannon + AP shell + plane.

The other 5% is either against land installation, (Which AP shell BB can still do huge damage to them anyway and it is often used over etype 3 shell, like in 4-5 pre final form). Training at 3-2A (you dont want BB to use AP shell here) and against map which has not very strong enemy but a lot of whirlpool (radar reduce whirlpool fuel/ammo lost) but yeah in general, you will be using 91 AP shell the whole time.

WHY?

91 AP shell does bonus damage against heaviliy armored units.

Which are pretty much all the BB and CV enemies you will face.

It is extremly hard to do serious damage to those enemy without AP shell.

On top of this. AP +double cannon + plane allows you to activate not only double attack, but chance of a CI attack.

If you use radar instead of AP shell, you cannot trigger this CI attack, but only DA (double attack)

CI attack has increased accraucy and it is vital to sink enemy DD/CL (who has a bitch of evasion and can dodge like crazy, clearing them in daytime, allows your high power night battle ship to focus on the boss in night time)

Furthermore, AP shell give great stats, (fire power is way more important than accraucy, unless you are looking at like Yamato class BB, you can offset the accraucy by using lower weight gun.) For example it is far better to have 2X 35.6 + 91 ap shell on Krihishma (or any kongou class) rather than 2X46cm + radar.

Last point AP shell is easily upgradeable, only taking 1  screw and can be done any/everyday.

While radar is so much more costly, and i dont imaigne new players will have many T32 radar to start with anyway. It is far more expesnvie to craft radar than AP shell. Even if they do have a lot of T32 radar, 91 Ap shell is still perfered setup for BB for reason i mentioned aboave.

TLDR:

Ap shell does bonus damage aginast big enemy (not to mention the FP stats,)

AP shell doesnt have less accraucy than radar due to been able to offset lighter guns, and CI trigger

AP shell is cheaper and easier to upgrade, making them even better. (remeber upgrade increase both FP and Accraucy)