The thickness-to-chord ratio, denoted as “t/c,” is a dimensionless parameter used in aerodynamics and aircraft design to describe the relative thickness of an airfoil or wing section. Specifically, it quantifies the ratio of the maximum thickness (t) of the airfoil to its chord length (c), which is the distance between the leading edge and the trailing edge of the airfoil.Â
- Maximum thickness, t
- Chord length, c