Talk:General Discussion/@comment-5046483-20141104221921/@comment-27.74.17.2-20141107003134

Iowa is next-gen battleship was built in WW2 with much stronger engine than pre-WW2-built BC or BB. In Kongou-class case, it was built in WW1, 1911~1915, then recontructed to BB in 1929~1930, the gap between technology make them have more power engine, and armor was upgraded heavily with more 4.000 tons to it's weight, just only for armor.

Compare to earlier FBB like Queen Elizabeth - 25 knots, Hood and North Carolina have 28 knots, far slower than BC Renown around 31 knots. Even Kongou upgrade from BC to FBB, still slower than Renown.