The velocity of the airframe represents its speed and direction of movement through the air.
- ṁ is the mass flow rate in kilograms per second (kg/s).
- ρ is the air density in kilograms per cubic meter (kg/m³).
- A is the cross-sectional area through which Airframe Design (in square meters, m²).
- V is the velocity of the Airframe Design (in meters per second, m/s).