Talk:Type 91 Armor-Piercing (AP) Shell/@comment-21769584-20140906220225/@comment-24155103-20140909024855

Seaplanes are an absolute necessity for artillery spotting and should be standard for every single type of BBs unless you're running something really weird/specific. (e.g. 1-5 ASW BBV)

Either way, the standard equipment for BBs is 2x red guns, 1x seaplane and a wild card, many used to equip radars but there are some that prefer the Type 91, it's up to you really. Seirans are somewhat acceptable on BBVs, but other types of seaplane bombers are just terrible and not worth it.