Correct, no sword can (to my knowledge) cut plate armor, I will not argue otherwise, steel vs. steel it's just not going to happen. A typical broadsword and katana are both around 36 inches and about 2 pounds, my reference to the 1/4 I though you spoke of larger greatswords. lastly, the cutting ability of a katana is much greater because the combination of laminated steel and clay hardening techniques made the edge untempered (very hard) and the back unhardened (soft) while the whole of European swords are tempered (medium hard). harder edges make sharper blades, the Japanese also had better sharpening stones.flaming_squirrel said:Slightly late but anyway, you are aware that no Katana could cut through plate armour, correct?2733 said:you are aware that even the largest of European swords could not cut heavy plate armor, correct? so the katana simply does the same task of cutting a man down with 1/4 the weight.
(oh hey, I can act condescending too)
Also a Katana is considerably heavier then a longsword and far worse for thrusting through gaps in armour, they essentially clubbed through defences using weight and momentum.
I've been learning and practicing sword smithing for a while so I've done a lot of learning about this sort of thing.