An active inceptor apparatus and method for operating a machine. The apparatus comprises a stick member having a grip portion, the stick member being pivotably mounted relative to a housing. It further comprises a position sensor responsive to, and for generating signals indicative of, stick member position. A force sensor is provided on the stick member responsive to, and for generating signals indicative of, force applied to the stick by a user. The apparatus also includes a control unit operable to receive the position and force signals from the position and force sensors respectively. The control unit is operable to process the signals according to a predetermined relationship to determine a value FD indicative of force applied to the stick member relative to displacement of the stick member. The control unit is also operable to generate machine control signals as a function of position signals and force signals in dependence upon the value FD, for communication to the machine.

A fly-by-wire aircraft and method of flying a fly-by-wire aircraft is disclosed. The aircraft includes a control system for flying the aircraft in one of a proportional ground control mode and a model following controls mode. A control device at a control interface of the aircraft selectively activates a trim follow up function in the control system. When flying the aircraft in a proportional ground control mode, trim follow up function can be activated. The control system can then transition into the model following controls mode with the trim follow up function activated to reduce transient behavior.

A system for augmented pilot operations is provided to perform checks and balances between navigable systems and a plurality of controlling parties of a Fly-By-Wire vehicle. A ground based control system having at least one of manual controls and an autonomous piloting system, an electronic communication system including at least one of an onboard communication system, a ground based communication system, and a programmable interface for inter party communication. An on board flight control system including at least one of a primary power unit, manual flight controls, and a programmable flight management system may be provided. An onboard auxiliary navigation system including at least one of an auxiliary power control unit, a ground operated control/navigation unit, a physical barrier may prevent manual override from within the plane or cockpit, and an assignment device. A disagreement detection system may be configured to detect unauthorized use of the Fly-By-Wire vehicle.

An electromechanical actuator comprising a body and an electric motor driving at least one motion transmission element connected to the body via a brake device, a mechanical torque limiter with rollers, and a unidirectional transmission member, the brake device including an electrical activator member so that when the activator member is powered, the unidirectional transmission member is released relative to the body, and when the activator member is not powered, the unidirectional transmission member is secured to the body and opposes pivoting of the transmission element in one direction of rotation up to a maximum transmissible torque defined by the torque limiter.

A flight control system for an aircraft includes at least one flight control computer that carries out a ground lift dump function that selectively extends a spoiler located on a wing of the aircraft into an airflow passing over the wing. The at least one flight control computer includes arming logic that is responsive to an input signal indicative of an aircraft parameter to automatically arm the ground lift dump function during certain phases of operation of the aircraft. The at least one flight control computer includes spoiler deployment logic that is responsive to an arming signal from the aiming logic which indicates that the ground lift function is armed to deploy the spoiler into its extended position within the airflow passing over the wing of the aircraft to assist in stopping the aircraft while the aircraft is on the ground.

Air vehicles, fly-by wire systems, and method for preemptive mitigation of turbulence are provided. An air vehicle includes a flight control surface, a sensor, and a controller. The sensor is configured to determine a velocity of an air mass that is separated from the air vehicle by a predetermined distance. The controller is communicatively coupled with the sensor and is configured to determine whether the air mass will disturb smooth flight of the air vehicle. The controller is further configured to manipulate the flight control surface in response to determining that the air mass will disturb smooth flight of the air vehicle.

A vehicle, such as an airplane sets a limit for a control variable used to deflect a control surface. The limit is set as a function of an unfavorable flight condition/target angle of attack and a rate of change of angle of attack so that a pilot control variable command is prevented from exceeding the limit to prevent the vehicle from reaching an unfavorable flight condition and/or exceeding a desired angle of attack limit.

Systems and methods for operating flight control surfaces are provided. One system includes a control device having a two piece shaft including a first shaft portion and a second shaft portion, a spline key detachably coupling the first shaft portion and the second shaft portion, and a crankshaft operatively coupling the two piece shaft and a flight control surface. The control device further includes a driving mechanism coupled to the spline key and operable to move the spline key to engage and disengage the first and second shaft portions, wherein the first and second shaft portions are disengaged when a failure to the flight control surface is detected, causing the second shaft portion to drive the flight control surface to a safe position.

A control system for assisting a pilot to control an aircraft operating under control of an active inceptor, the control system comprising: a receiver for receiving pilot-inputs on an active inceptor, an instruction generator to generate an instruction, the instruction based on an external signal associated with the geographical location of the aircraft; a tactile cue generator to generates a tactile cue which causes the active inceptor to move from a nominal position to a first offset position within a predetermined time period in response to the instruction.

A control method for controlling aerodynamic means of an aircraft having mechanically decoupled flight controls enabling the aircraft to be piloted by at least two pilots. The aircraft has at least two control members operated by respective ones of the at least two pilots and each enabling control signals to be generated for causing the aerodynamic means to move relative to an incident air stream. The control method includes piloting logic (operational logic). The operational logic includes a dual operating mode in which each control member can control the aerodynamic means. In the dual operating mode, only one of the at least two control members, (the activated member), has exclusive control over a full travel amplitude of the aerodynamic means. The other control member, (the deactivated member), then is temporarily inoperative on the aerodynamic means.