I think you just finished saying the same thing I did. It's probably not going to have a pleasant stall characteristic, and if you tune that out through other geometry changes, you'll be throwing away the speed.
He's free to build it as he sees fit, but I hope it sees more time in the air than Roy's has seen. Roy is an ex-fighter pilot, and used to fly P-38s, among others, and he could apparently handle it (although I'd question that given that I saw a landing at Covington up-close and personal that was spectacular in the wrong way). I'm just trying to keep somebody from making what I consider to be a mistake. I didn't come up with this opinion on my own. I mentioned the 23012 to Lionheart designer Larry French about 10 years ago and he laughed and said "you'd have to be crazy to use that thing", and I've heard it echoed several times from other sources over the years. I'm not an aerodynamicist, but I'm smart enough to listen when one talks. I guess at the very least, if Bob wants to go ahead with the 23012, he should compare the curves for the 23012 and the AS5045 or AS5046 and see if there's anything to be gained by using the 23012 instead. Maybe he's already done that and has made his own judgement call. If so, great, go for it! Maybe I should just keep my mouth shut and answer his real question, which I did with the spar software that I posted. I reserve the right to say "I told you so" later on though... Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
