Before revision: Conventional cambered airfoils supported at the aerodynamic center pitch nose-down so the pitching moment coefficient of these airfoils is negative.Ira H. Abbott, and Albert E. Von Doenhoff (1959), Theory of Wing Sections, Dover Publications Inc., New York SBN 486-60586-8 References Bibliography L. J. Clancy (1975), Aerodynamics, Pitman Publishing Limited, London, Piercy, N.A.V (1943) Aerodynamics, pages 384–386, English Universities Press.
After revision: See alsoMnemonics to remember angle names Aircraft flight mechanics Flight dynamics Longitudinal static stability Neutral point Lift coefficient Drag coefficientConventional cambered airfoils supported at the aerodynamic center pitch nose-down so the pitching moment coefficient of these airfoils is negative.Ira H. Abbott, and Albert E. Von Doenhoff (1959), Theory of Wing Sections, Dover Publications Inc., New York SBN 486-60586-8 References Bibliography L. J. Clancy (1975), Aerodynamics, Pitman Publishing Limited, London, Piercy, N.A.V (1943) Aerodynamics, pages 384–386, English Universities Press.