Airfoils

NACA four-digit section geometry, thin-airfoil lift and pitching moment, and the Hess-Smith panel method.

The NACA four-digit airfoil family (1933)

The NACA four-digit airfoil family (1933)

Thin-airfoil theory: lift slope 2π and the camber shift (1922-1926)

Thin-airfoil theory: lift slope 2π and the camber shift (1922-1926)

The Hess-Smith panel method (1967)

The Hess-Smith panel method (1967)

Thin-airfoil pitching moment and the aerodynamic centre (1922-1926)

Thin-airfoil pitching moment and the aerodynamic centre (1922-1926)