Doran Jaffas wrote: > Do the wing extensions add significantly to the pitch sensitivity?
Wing extensions do degrade pitch sensitivity slightly, all other things kept equal, but the biggest factors are aft CG and "horizontal tail volume coefficient". Look that up on Google and you'll see the relationships. I added wing extensions and saw no real difference in pitch sensitivity, but climb and glide rates improved, with a slight speed increase...call it a "free lunch plus"! A lot of that was the Hoerner tips, however. Speaking of such things, I'm the "hoaky spar" guy. I built mine by simply sanding a foam block to shape and putting 2 layers of carbon fiber all over it. Using packing tape and nut-serts, I could have made them removable and removed the foam when finished to save weight. That structure is plenty strong enough for the loads at the tip. See http://www.n56ml.com/900hour/ for some details of how that was done. By the way, please refrain from quoting an entire issue of the Digest. It's a repeat of an entire day's email, and just clutters up the archive and subscriber mailboxes... Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------
