This document summarizes the key geometric and aerodynamic characteristics of airfoils. It discusses airfoil shape parameters like chord length, camber, and thickness. It also describes different common airfoil types and series developed by organizations like NACA. The document explains lift, drag, and moment coefficients and how they relate to angle of attack, Reynolds number, and Mach number. It discusses important aerodynamic concepts like flow separation, stall, and dynamic similarity which allows wind tunnel testing of scaled models.
4. Prof. Galal Bahgat Salem Aerospace Dept. Cairo University Airfoil geometric characteristics include: 1- Mean camber line : The locus of points halfway between the upper and lower surfaces as measured perpendicular to the mean camber line. 2- Leading & trailing edges: The most forward and rearward points of the mean camber line. 3- Chord line: The straight line connecting the leading and trailing edges.