NetHeads, The weather Friday afternoon was perfect for some testing, with calm winds and moderate temperatures, and very smooth air. I'd planned to do some climb tests (since it'd be easier to maintain constant climb rate), and then add gap seals to see how much difference they made in the climb rate. I did the first part, and then also did a bunch of stalls, but when I got down my laptop had rebooted so I lost all the information. By then it was too late to repeat that test AND the gap seals, so I just stuck some tufts on the wing to see if there was anything to be learned from that. I'm not sure that there was (other than there was nothing funny going on and that some real wingtips would probably help in climb), but you can see the result at http://home.hiwaay.net/~langford/performance/ . If nothing else, it'll show you how easy it is to do this.
I'll do better next time around, and will add gap seals the next time there's a good test day that will allow back to back comparisons. They reportedly make a big difference on the AS504x airfoil with the RR type aileron gap, but no real difference on the RAF48, so I should be somewhere in between with my Frise ailerons. One of these days I'll tuft the whole thing and get a buddy to fly chase with a camera. That ought to be interesting. Am I the only KR guy that's doing any real testing? Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net --------------------------------------------------------------
