US Patent 10124907 Autorotation guidance command system, device, and method

An avionics computing device of an aircraft including a rotor may include a non-transitory computer-readable medium and a processor communicatively coupled to the non-transitory computer-readable medium. Upon an occurrence of a condition indicative of a requirement to perform an autorotation maneuver, the processor may be configured to generate autorotation guidance commands based on a generated feasible three-dimensional autorotation trajectory. The generated feasible three-dimensional autorotation trajectory may be for the autorotation maneuver of an aircraft including a rotor. The generated autorotation guidance commands may be configured to guide a pilot of the aircraft to perform the autorotation maneuver of the aircraft along the generated feasible three-dimensional autorotation trajectory. The processor may further be configured to output data associated with the generated autorotation guidance commands to an input/output device for presentation to the pilot.