What is an airfoil? The definition of an airfoil (or aerofoil in the UK) is a structure with curved surfaces, such as an airplane wing, fins, and horizontal stabilizer, designed to provide the best ratio of lift to drag during flight. The meaning of airfoil is the same for all aircraft. Let’s consider the stubby, short wings of my Grumman compared to the long, flowing wings of the Epic Flight Academy’s Cessna 172SP. You may wonder how my little bird would have enough wing to leave Earth’s gravity. You can compare this to an egret flapping frantically to rise a few feet from the sand. Its tiny wings are capable of supporting what appears to be an oversized body. However, … Read more