At 11:47 AM 11/10/2006, you wrote: >It is upside down on the table, is it normal that the >middle section of the longerons are lifting up from the >table top for about 1" or so, this means there will be a >dip on the middle section of both longerons when the >fuse is turn rightside up? > Noel Bong +++++++++++++++++++++++++++++++++++++++++++++
If you use the firewall as your reference to level the airplane ,as suggested in the plans, the "banana boat" effect is a non-issue. The only measurement you will be taking in reference to the top longerons will be to level side-to -side when installing the spars. In addition to the longerons bowing up off the table, the firewall will pull in (to the rear) at the top. Using the longerons to level will have your engine thrust line at a slight positive angle. Using the firewall will put everything in better alignment, i.e. engine thrust line, wing incidence angle, horizontal stab angle. Once finished and flying, the slipstream won't care what the top longerons are doing, running in circles, saw tooth pattern, etc., it just doesn't matter. Use the firewall as a reference and make it easy on yourself. It worked for me. Larry Flesner
