A Simple Way to Design & Construct an Airfoil

When fluid flowing past an object tends to drag the object along in the direction of fluid flow. If an object is moving through a stationary fluid the drag tends to slow the object down. If the object is stationary in a flowing fluid the drag tends to move the object in the direction of flow. While moving through air airplanes also subjected to several drags. In order to overcome these drags airplane wings cross section airfoils are designed very carefully. National Advisory Committee for Aeronautics or NACA developed and tested "families" of airfoils. Some of the most successful of these were the NACA four-digit and five-digit series. The necessary coordinates for designing NACA airfoil profiles are available in online sources. But the present book describes the way of designing NACA four digit airfoils without taking any coordinates from available sources like google or any other search engines. Using C programming with the help of provided equations a generalized source code is designed. Which will provide coordinates for designing any NACA four digit airfoil profiles.