Tony wrote: > I've read your thoughts on AOI etc. I believe the project (boat with main > spars in place) I just purchased was built to original KR2 plans, so I > assume it is using 3.5degre AOI for wings?. I intend on going with the > AS504x. I've been thinking I will have to find a way to raise the rear > spar to get close to 1-2degree AOI. Are you suggesting its probably not > worth the effort if my main concern is cruise AOA at altitude of 5-10K.
Yes, you've got it. Due to the differences in the airfoil shape, the rear spar is almost in the correct place anyway. I think either way is fine. The templates for the AS5046 are set up for either way, so whatever's easiest for you. I'll bet there's no measureable difference, except perhaps in visibility over the cowling, and you can get one degree closer to a full stall landing without hitting the tailwheel first. The horizontal stab isn't "theoretically perfect", but neither is Troy Petteway's KR2, and his is the fastest KR I know of... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net
