The drag of an of an airfoil is the component of force produced by the airfoil in the direction parallel to the relative wind.
Angle of Attack, Cylinder Drag, Drag Coefficient, Drag Force, Lift, Pitch, Ram Pressure, Roll, Yaw
References
Denker, J. S. See How It Flies: New Spin on the Perceptions, Procedures, and Principles of Flight. http://www.monmouth.com/~jsd/how/htm/4forces.html
