The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.Įquation for a symmetrical 4-digit NACA airfoil The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. įor example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord.
![naca 0040 airfoil generator naca 0040 airfoil generator](https://image2.slideserve.com/4677510/slide25-l.jpg)
NACA 0040 AIRFOIL GENERATOR SERIES
According to the NASA website:ĭuring the late 1920s and into the 1930s, the NACA developed a series of thoroughly tested airfoils and devised a numerical designation for each airfoil - a four digit number that represented the airfoil section's critical geometric properties. NACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center.
![naca 0040 airfoil generator naca 0040 airfoil generator](https://blenderartists.org/uploads/default/original/3X/1/6/168a6b2ca237d991b3060b96e068265604d1a214.jpg)