In a V-n Diagram, how is velocity measured?

In a V-n diagram, which plots the relationship between velocity and load factor, velocities are often measured in knots. The term "equivalent airspeed" (EAS) refers to the dynamic pressure necessary to maintain the same aerodynamic performance at reduced air densities, such as at higher altitudes. This adjustment is crucial for ensuring that the aircraft operates safely and efficiently in various flight conditions.

Using knots as a measurement allows for consistency and standardization across various aviation contexts, and it aligns with the units typically employed in aviation for speed. Equivalent airspeed is particularly relevant in the V-n diagram because it accounts for changes in air density due to altitude, providing a more accurate depiction of an aircraft's performance and ensuring that pilots understand how the aircraft will behave under different loading conditions throughout its flight envelope.

Consequently, measuring velocity in knots with respect to equivalent airspeed aligns with the principles of aerodynamics and flight performance, making it the correct choice for representing velocities in a V-n diagram.