What is wingspan divided by the average chord?

The aspect ratio is a critical concept in aerodynamics that relates to the shape and performance characteristics of an aircraft's wing. It is defined as the ratio of the wingspan to the average chord of the wing. In essence, a wing with a higher aspect ratio has longer and narrower wings, while a lower aspect ratio wing appears shorter and wider.

This ratio is significant because it influences various aerodynamic properties, such as lift, drag, maneuverability, and stability. For example, higher aspect ratio wings typically yield better lift-to-drag ratios, which can enhance the overall efficiency of the aircraft in flight. Conversely, lower aspect ratio wings can provide better roll rates and are often found on aircraft designed for agility and combat.

Understanding aspect ratio is crucial for pilots and engineers alike, as it can impact performance in different phases of flight. In comparison, the other options represent different aerodynamic concepts or parameters not related to the wingspan and average chord ratio.