John wrote: > According to the plans for the -2S, the aft vertical spar, aft edge measurement is 1 1/2 inch across and the fwd of the edge rudder spar is 1 3/4 inch across. Am I measuring something wrong? Why would the measurement be a 1/4 inch difference? I would think the measurement would get smaller as you move aft. > Finally, does the bevel, that is required on the aft spar on the vertical fin so the fuselage plywood will glue flat, go or continue all the way up the spar? I think I know the answer but I want to make sure I don't mess something up.
John, My plans (KR2) show the stern post to be 1 3/4" wide. I actually went out and measured mine and it is 1 3/4" on front beveled to 1 1/2" on the aft side. When you add the fuse plywood sides to it, then it's about 2" across the front beveled to 1/3/4", which is the width of the rudder spar. On the bevel question, you don't bevel the spar all the way to the top because the degree of bevel to accept the fuselage ply is different from the bevel for the airfoil. I would bevel only enough to install the stern post (about a foot or so), then as Larry suggester, glue your vertical rib template in place before shaping the rest of your stern post. I hope this answers your question. good luck. Dean Cooper Jacksonville, FL Email me at [email protected] See my KR project at www.geocities.com/djramccoop1/KR2_Home.html
