The lift-to-drag ratio, often denoted as L/D, is a fundamental parameter in aerodynamics that quantifies the efficiency of an airfoil, wing, or aircraft in generating lift (the upward force) compared to the amount of drag (the resistive force) it produces. It is a critical metric used to assess the performance and efficiency of an aircraft or airfoil design.Â
- Lift to drag ratio (L/D)
- Lift coefficient (cl)
- Total drag coefficient (cd)total