curved or tapered shape thin leading edge and thick trailing edge rounded or pointed tips symmetrical or asymmetrical profile smooth surface with no bumps or ridges aerodynamic design to reduce drag and increase lift typically made of metal, wood, or composite materials
airfoil which has curved or tapered shape airfoil which has thin leading edge and thick trailing edge airfoil which has rounded or pointed tips airfoil which has symmetrical or asymmetrical profile airfoil which has smooth surface with no bumps or ridges airfoil which is aerodynamic design to reduce drag and increase lift airfoil which typically made of metal, wood, or composite materials