Here is a high speed camera compilation of the 8th All Japan Kendo Hachi-Dan (8th dan) Championship of 2010.
SWORD | Weight (lb) | Weight (g) | Seller |
Regular Kendo Bamboo Shinai (39”) | 1 lb 1oz | 500 g | |
PAUL CHEN TSURU IAITO (29” blade) | 2 lb | 907 g | |
PAUL Chen Practical Pro Katana (29 ½" Blade) | 3 lb | 1360 g | |
Paul Chen Practical Pro Elite Katana (29” Blade) | 2lb 13 oz | 1276 g | |
Itto Ryu Bokuto (E Bogu) total length 39” | 1 lb 5.6 oz | 613 g | e-bogu |
SHINAI SHAPE Bokken for Suburi total length 39” | 1.85 lb | 840 g | e-bogu |
Suburi Bokken With Groove (Red) | 2 lb 2.1 oz | 968g | e-bogu |
Suburi Shinai for Training Pieces 4 | 2.02 lb | 915 g | e-bogu |
Suburi Shinai for Training Pieces 6 | 2 lb 5.4 oz | 1060 g | e-bogu |
From different sources, it seems that an average katana blade of a 27 or 28" length would have weighted between 900 and 1100 g (2 to 2.2 lb). This is the weight of a bare blade without any koshirae (mountings : Tsuba, tsuka, etc...). A mounted blade (without the saya) would probably weight between between 1200 and 1400 g.
So if you want to practice in a more realistic way, you should :
- get yourself a heavy 6 blades shinai, I know, at $ 75.00 it's a little pricey...
- make sure when you cut your opponent, that you do it without putting yourself at any risk of being cut. (No Aiuchi)
Respectfully...