Board Thread:General Discussion/@comment-26091970-20150604000724/@comment-749631-20150930085505

64.233.173.161 wrote: compare to shoukaku, taihou don't need blueprint to be CVB because in historical only taihou and shinano was implemented to be CVB

CVB is not always look from large the size, but from extra thickness armor from flight deck. this is can be reason  why shoukaku need prototype flight deck (for increase the thickness of armor flight deck) and blueprint (because is planning and not implemented in historical) in game

this my refrence wiki https://en.wikipedia.org/wiki/Armoured_flight_deck

like bismarck never have the torp. but his sister have the torp

so the reason why bismarck need blueprint in game to remodelling with torp(bismarck drei), because in historical she not implemented with torp

CMIIW US Navy homepage say CVB= Large Aircraft Carrier. See http://www.history.navy.mil/our-collections/photography/us-navy-ships/aircraft-carriers.html