NACA Airfoils

thingiverse

NACA are very well understood airfoils created by NACA, the agency that is now known as NASA, in the early days of flight as a way to produce and evaluate airfoils for testing in a repeatable way. In this post I've included 3 different NACA airfoils (naca2414, naca4424, and naca6412 in STL and sldprt form) that I selected for their variances in topography. As a side note, Here's an explanation of the NACA 4 digit nomenclature, NACA2414 = 2% of chord max camber at 40% of chord with 14% of chord max thickness. I won't explain those terms here, but if you're interested in learning about them, I encourage you to research them and jump down the Aerospace rabbit hole.