Steve wrote: > each tip, 12.5" behind the firewall, and 24.5" behind the wing,
I hope you're planning on a really light engine if you're going to add 12.5" behind the firewall (if you mean between main spar and firewall), or some other configuration that doesn't resemble a KR, because you'll have to add a bunch of lead in the tail to make it flyable otherwise. I'm sure you've thought this out and done the weight and balance math, but if not, now would be the time to do a reality check... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net