NACA
NACA Airfoils

NACA, a MATLAB library which can take the parameters of certain NACA airfoils and return the coordinates of a sequence of points that outline the wing shape.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

NACA is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

naca_test

Reference:

Eastman Jacobs, Kenneth Ward, Robert Pinkerton,
"The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel",
NACA Report 460, 1933.

Source Code:

naca4_mpt.m, extracts the M, P and T parameters from a NACA 4 digit code.
naca4_cambered.m, given a point xc along the camber line, returns pairs (xu,yu) and (xl,yl) along the upper and lower airfoil surface of a NACA cambered 4-digit airfoil.
naca4_symmetric.m, given a point x, returns the value y(x) so that (x,y(x)) lies on the upper surface of a NACA symmetric 4-digit airfoil and (x,-y(x)) lies on the lower surface.
r8mat_write.m, writes an R8MAT to a file.
timestamp.m, prints out the current YMDHMS date as a timestamp.