CJ-2309 very stable, flat bottom best at 10 inch chord start 100 0.3 95 0.45 90 0.65 80 1.15 40 5.9 30 7.0 20 7.68 15 7.5 10 6.7 7.5 5.9 5.0 4.75 2.5 3.0 1.25 1.8 0 0 1.25 -1.35 90 -1.85 95 -1.3 100 -0.3 end