A system for receiving feedback in a flight plan of a vehicle includes a haptic-enabled device comprising a crew seat with an inceptor mounted thereto; and a processor with memory having instructions stored thereon that, when executed by the processor, cause the system to: receive signals indicative of the flight plan for the vehicle; receive deviation signals indicative of a proposed deviation in a trajectory for the flight plan; and transmit signals to the haptic-enabled device representing trajectory constraints in the proposed deviation in response to the receiving of the deviation signals.

A system for receiving feedback in a flight plan of a vehicle includes a haptic-enabled device comprising a crew seat with an inceptor mounted thereto; and a processor with memory having instructions stored thereon that, when executed by the processor, cause the system to: receive signals indicative of the flight plan for the vehicle; receive deviation signals indicative of a proposed deviation in a trajectory for the flight plan; and transmit signals to the haptic-enabled device representing trajectory constraints in the proposed deviation in response to the receiving of the deviation signals.

In accordance with an embodiment of the present invention, a method of operating a rotorcraft includes operating the rotorcraft in a speed control mode, where a speed of the rotorcraft is proportional to a pilot control command; detecting a high longitudinal acceleration condition; upon detection of the high longitudinal acceleration condition, temporarily disabling the speed control mode and stabilizing the rotorcraft while the speed control mode is disabled; and reestablishing the speed control mode when a measured longitudinal acceleration of the rotorcraft falls below a first threshold.

In accordance with an embodiment of the present invention, a method of operating a rotorcraft includes operating the rotorcraft in a speed control mode, where a speed of the rotorcraft is proportional to a pilot control command; detecting a high longitudinal acceleration condition; upon detection of the high longitudinal acceleration condition, temporarily disabling the speed control mode and stabilizing the rotorcraft while the speed control mode is disabled; and reestablishing the speed control mode when a measured longitudinal acceleration of the rotorcraft falls below a first threshold.

Example torque tube assemblies for use with aircraft high lift devices are described herein. An example apparatus includes a spline coupling having a first yoke, a sliding splined shaft having a second yoke and a torque tube having a first end and a second end opposite the first end. A first fitting with a third yoke is coupled to the first end of the torque tube, and a second fitting with a fourth yoke is coupled to the second end of the torque tube. The third yoke is coupled to the first yoke to form a first U-joint, and the fourth yoke is coupled to the second yoke to form a second U-joint. The spline coupling is to be coupled to a first high lift device drive shaft and the sliding splined shaft is to be coupled to a second high lift device drive shaft.

A galley cart includes walls defining an interior cavity extending between a front and a rear of the galley cart and the interior cavity extending between a top end and a bottom end. A supply port is provided in flow communication with the interior cavity at or near either the top end or the bottom end of the cart. A return port is provided in flow communication with the interior cavity that is adjacent the supply port at or near the top end or the bottom end of the cart. A barrier is positioned between the supply port and the return port within the interior cavity of the cart to define a supply chamber and a return chamber to control airflow through the interior cavity.

Disclosed herein is a method of controlling an aircraft, the aircraft including a plurality of actuators, a plurality of actuator control units, and a plurality of flight control systems for generating control signals. The method comprises, at each of the plurality of actuator control units: (a) from each of the plurality of flight control systems, obtaining a respective control signal for controlling an actuator associated with the actuator control unit, the actuator being one of the plurality of actuators; and (b) providing an actuator control signal to the associated actuator, wherein the actuator control signal is based on an analysis of the obtained control signals.

A shock absorber assembly is configured to be operatively connected to a drive shaft of a power drive unit (PDU) of an aircraft. The shock absorber assembly may include a first hub, a second hub, and a bull gear having at least a portion sandwiched between the first and second hubs. The bull gear is configured to rotate independently of the first and second hubs a controlled distance in response to a mechanical malfunction of the PDU.

A shock absorber assembly is configured to be operatively connected to a drive shaft of a power drive unit (PDU) of an aircraft. The shock absorber assembly may include a first hub, a second hub, and a bull gear having at least a portion sandwiched between the first and second hubs. The bull gear is configured to rotate independently of the first and second hubs a controlled distance in response to a mechanical malfunction of the PDU.

A hybrid electric propulsion system includes a turbomachine, an electric machine coupled to the turbomachine, and a propulsor coupled to the turbomachine. A method for operating the hybrid electric propulsion system includes operating the turbomachine to drive the propulsor; receiving data indicative of a failure condition of the hybrid electric propulsion system; reducing a fuel flow to a combustion section of the turbomachine in response to receiving the data indicative of the failure condition; and extracting power from the turbomachine using the electric machine to slow down one or more rotating components of the turbomachine in response to receiving the data indicative of the failure condition.