CalebChow wrote:Question for Chris:
Are katana (well, in Japanese arts) in ancient times supposed to be swung so hard that a wooden/bamboo counterpart would do such maiming and fatal damage? I handed a $4,000,000 five hundred-year old specimen that belonged to a private collector in Taiwan once, and I think that kind of force is ridiculously excessive. It's not like swords were meant to bash through armor, least of all ones with legendary cutting edges.
There are several competing opinions on this subject, I'm not at all an expert, if you want a good reply then I suggest you join e-budo as they're probably the best online community on the subject of Japanese swordsmanship. The answer heavily depends on what period of their history you're looking at, both the techniques and the katana itself vary considerably.
I know of anecdotal evidence: in the muye dobo tonjii there is a passage where they describe how the Japanese train by repeatedly beating straw with great force to develop speed and power.
I've never heard of a koryu that will teach you this. Many koryu that teach armored fighting will tell you to aim for the weak points in traditional armor, some however don't.
There are traditional "kabutowari" or helmet cutting tests that were performed to judge blade and swordsman quality. Recently Obata Toshishiro (shinkendo) performed a spectacular cut on a period helmet.
http://www.shinkendo.com/kabuto.html
My own opinion is that it's safe to say that swords were not intended to cut "through" armor but it did occasionally happen, either through existing fault of the armor, quality of blade or swordsman, and more likely a combination of all with random chance.
However armor (western or eastern) is not an invincibility suit, you're a brave man if you're willing to give me your fully armored head for a full cut (and as long as you don't sue me after the fact, I'm game!). I may not cut through the helm, but I'll guarantee you're not in good shape.