The power required for an aircraft is the amount of power that must be generated by its engines to overcome various aerodynamic forces and maintain a certain flight condition. For Unaccelerated and Straight-Level Flight drag force equal to Thrust force . The power required depends on factors such as airspeed, altitude, and the aircraft’s configuration. The basic formula for power required () is given by:Â
Where:
- D is Drag Force in N,
- V∞ is the velocity in m/s