Larry H said: 4 bolts each spar on one side or 8 little bolts per side or 16 total on both sides. Some may have used 4 per side but if so use a compression spacer between fittings. Probably safest to go the 16 piece route.
I bought my KR2 plans built after all was built and just needed mods to fit me and my airspace here in Florida. One of the changes that my builder did was to carry the spar all the way thru the WAFs until even with the ends of the WAFs. This made the spar itself the compression spacer, as the long bolts have to pass thru the main spar when installed. The short bolts use a spacer in between the WAFs at the rear. 2 large bolts for the main spar, 2 small bolts for the rear spar with spacers. All bolts installed from the front so if the nut fell off (God forbid!) hopefully the bolt will be held in by what little air pressure they see (maybe). My old bolts when I bought the plane were AN 6 or 8 (I think 8's) with friction nuts. I have replaced them with brand new AN8's with castle nuts and drilled bolts from AS&S. After several installs I did not trust the bolts integrity any more so for like $20 I feel better. The main spars are barely botched to allow the WAF from the outer wing panel just enough room to insert form connection. It is harder to align for one bolt top and one bottom, but I feel better about the fact that it IS aligned with one bolt. Colin Rainey brokerpi...@bellsouth.net
