Aerodynamic efficiency in the context of aircraft design often refers to the aircraft’s ability to generate lift with minimal drag. A key parameter that represents aerodynamic efficiency is the lift-to-drag ratio (L/D). The lift-to-drag ratio quantifies how effectively an aircraft can generate lift (which is essential for supporting its weight in flight) while minimizing the drag (resistance to motion) it experiences.
The formula for calculating the lift-to-drag ratio (L/D) is as follows:
- Lift-to-Drag Ratio (): Dimensionless (no units).
- Lift Force (): Newtons (N) or Pounds-Force (lbf).
- Drag Force (): Newtons (N) or Pounds-Force (lbf).