>Seeing that the top longeron forms a banana when bending the sides to form >the fuse, I thought of using the firewall as the datum and using that as the >vertical or plumb surface and working out everything else from that. >Comments?? ++++++++++++++++++++++++++++++++++++++++++++++++++++++
Dene, Go back and check your plans. They suggest doing that very thing. I think it's the most accurate spot for a reference as it will put all flying surfaces plus the engine in proper alignment. It worked for me. +++++++++++++++++++++++++++++++++++++++++++++++++++++ >One more question if I may: I can't make up my mind whether to install the >spars in the fuz first and then rig the outer spars to them (install >w.a.f"s)or rigging the outers first before installing the centre spars in >the fuz. Pro's and con"s of each?? >Dene Collett ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ I installed all my forward spar fittings before installing center spar in fuselage. I did this with only an eight foot table. I supported the outer spars with separate stands. This allows you to stretch a line from tip to tip to keep the spar straight and the line will also give you the dihederal (5 inch rise at the tip) or whatever the plans call for. It's been a while since I did that. You then remove the fittings from one end of the center spar to insert into the fuselage. The rear outer spars can only be aligned after the center spars are bonded to the fuselage. Get the front center spar aligned and bonded and then use the 48 inch ribs to locate the rear center spar for bonding. I used two bubble levels to set mine up and when I later checked it with a digital level I found it to be off only 1/10th of one degree and the KR flies well. I not so sure I even have the ever so slight heavy right wing I mentioned in my first fligh post. To many variables to check out yet and it's so minor as not to be a problem. I'm not even planning to install any tabs yet on any of my control surfaces. It flies that well. Larry Flesner Carterville, Illinois
