RE: Keep in mind that the RAF 48 airfoil is not tried or proven, especially for the KR2.
Colin, I agree with all of the points that you made, with the exception of the one above. I wonder how many KR have tried and proven the RAF 48 in actual conditions. Would you guess, several thousand. I will take actual experience over lab tests anytime. That said, if I were to start over, given a little more actual results on the new airfoil, I would most likely go with the new one. I think that this "new breed" will probably prove it to be a very good choice. N64KR Daniel R. Heath - Columbia, SC da...@kr-builder.org See you in Red Oak - 2003 See our KR at http://KR-Builder.org - Click on the pic See our EAA Chapter 242 at http://EAA242.org