To Peter Drake You asked:"....What thickness ply is the outboard rib, the one before the extension begins?...... I presume you mean the rib that straddles the wing attach fitting on the center spars.The answer is 3/32 of an inch. (Hope you still remember "inches"!) As far as the painting of the WAF's there is tons of information in the archives.In my case I am thinking about zinc chromate but there are as many answers to your question as there are KR-2's.
Regards, Louis Staalberg Payson, Arizona n...@cbiwireless.com