Region of Reverse Command
Flight in the region of normal command means that while holding a constant altitude, a higher airspeed requires a higher power setting and a lower airspeed requires a lower power setting. The majority of aircraft flying (climb, cruise, and maneuvers) is conducted in the region of normal command.
Flight in the region of reversed command means:
- Flight in which a higher airspeed requires a lower power setting
- Flight in which a lower airspeed requires a higher power setting
Note that it does not imply that a decrease in power produces lower airspeed.
The power required curve represents the speed at which the lowest brake horsepower sustains level flight.