In 1910, should a second-rank naval power buy six Ganguts or four Kongos?
Short answerChoose the four Kongos for their flexibility, unless geography confines the fleet to a restricted sea where the extra Gangut hulls become more useful.
NotesFour Kongos are the stronger choice unless the fleet is confined to a restricted theater such as the Adriatic. Their speed and wider operational options outweigh the two extra Gangut hulls for a second-rank navy expected to maneuver across open water. The caveat matters because geography can reverse the value of speed, range, protection, and numbers.