NACA 23021

Thickness: 21.0%
Camber: 2.4%
Trailing edge angle: 44.5o
Lower flatness: 3.6%
Leading edge radius: 4.9%
Efficiency: 38.1
Max CL: 0.443
Max CL angle: 15.0
Max L/D: 6.607
Max L/D angle: 8.0
Max L/D CL: 0.148
Stall angle: 7.5
Zero-lift angle: 5.0