Power Required for Unaccelerated and Level Flight Calculator

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: 

Where:

  • D is Drag Force in N,
  • V∞ is the velocity in m/s

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