Hatz Biplane Association

I didn't see a lot of discussion on this forum about flattening the ends of the anti-torque tubes. I did some searching on the Internet and came up with an interesting technique some guy used for flattening tubing for motorcycle rebuilding. I duplicated the technique for the torque tubes. I posted it on my blog:

http://myhatz.blogspot.ca/2017/05/2017- ... -tube.html

Which reminds me. The bolts for the anti-torque tubes are missing from the bill of materials. AN4-5A?