Abstract: The present disclosure provides methods and system for controlling the operation of a fly-by-wire aircraft. One or more yaw commands are received from an operator control, and one or more actual induced rolls rates are determined based on the yaw commands. A yaw signal and a roll-countering command are sent to flight control components of the aircraft, the yaw signal to cause a yaw motion in the aircraft, and the roll-countering command to counter the actual induced rolls. A standardized roll rate command is determined based on the yaw command, and the standardized roll rate command is sent to the flight control components to cause a roll motion in the aircraft.

Abstract: A system and method for determining a remaining useful life of an ozone converter of an aircraft are disclosed. The method comprises using flight data of the aircraft and location-based ozone exposure data to determining a cumulative ozone exposure for the ozone converter. The cumulative ozone exposure and a predetermined ozone exposure capacity of the ozone converter are used to determine a remaining useful life of the ozone converter. Based on the determined remaining useful life of the ozone converter, an indication that the ozone converter is approaching an end-of-useful-life condition is provided.

Abstract: An aircraft wing has a wing body with a span and a chord. A skin of the wing body has a leading edge portion with an inner surface delimiting a cavity of the wing body. A wing ice protection system includes a curved flow guide disposed within the cavity and spaced apart from the leading edge portion to define a fluid channel, A bleed air supply is operable to convey bleed air to the fluid channel. Turbulence-generating members are positioned within the leading edge portion to engage the bleed air in the fluid channel. The members are spaced apart along the fluid channel in a chordwise direction and/or in a spanwise direction. A thermal barrier may be disposed on the curved flow guide to thermally insulate the leading edge interior from the fluid channel.

Abstract: An air duct includes a first chamber and a second chamber, the first chamber being defined between an air handling device and the second chamber, and the second chamber being defined between the first chamber and an environment exterior to the air duct, a plurality of first openings between the first chamber and the second chamber, a plurality of second openings between the second chamber and the environment exterior to the air duct, and a sound absorbing material defining at least a portion of an interior surface of at least one of the first chamber and the second chamber.

Abstract: A passenger seat includes a bottom support to be connected to the aircraft floor, a seat pan frame, and a support structure interconnecting the seat pan frame to the bottom support. A front support member defines a frontmost portion of the support structure, and has a top end connected to a front end of the seat pan frame and a bottom end connected to the bottom support. The front end of the seat pan frame is forwardly offset from a front end of the bottom support and the top end of the front support member is forwardly offset from its bottom end such that an empty space is defined across a width of the seat between the seat pan frame and the floor, forwardly of the support structure, forwardly of the bottom support, and rearwardly of a vertical plane aligned with the front end of the seat pan frame.

Abstract: Systems and methods useful in providing equivalent visual operation (EVO) for the flight crew of an aircraft independent of the actual outside weather and visibility conditions through the use of synthetic vision (SV) and enhanced vision (EV) technologies are described. The systems and methods described herein can contribute toward gaining an operational credit that can expand the operational capabilities of an aircraft. The systems and methods described herein can provide relatively simple and intuitive solutions for activating and operating such systems.

Abstract: An aircraft including a fuselage extending along a longitudinal axis; forward swept wings extending from the fuselage; at least one horizontal stabilizer secured to the fuselage; and a distributed electrical propulsion system operatively connected to an electrical power source. The distributed electrical propulsion system have an air intake located rearward of an intersection between the forward swept wings and the fuselage open to a boundary layer region on a surface of the fuselage.

Abstract: A system and method for deploying a flight control surface. The method includes displacing actuators engaged with the flight control surface during an initial period wherein each actuator displaces from zero speed to a deployment speed, and during a deployment period after the initial period. The method includes during the deployment period, controlling displacement of at least one of the actuators in response to actuator status information received therefrom. The method includes during the initial period, limiting an acceleration of said actuator from the zero speed to the deployment speed. The system has a control unit with a force fight controller and an acceleration limiter.

Abstract: Fuel systems, apparatus and associated methods for preventing or hindering unwanted fuel transfer between fuel tanks of aircraft are described. An exemplary apparatus comprises a conduit portion disposed inside a fuel tank for receiving fuel in the first fuel tank. The conduit portion includes an orifice through a wall of the conduit. The orifice permits venting an interior of the conduit portion to an interior of the fuel tank to prevent unwanted fuel transfer due to siphoning. A deflector is disposed and configured to deflect a stream of fuel discharged from the orifice during fuel transfer.

Abstract: Methods and systems for controlling an aircraft cabin display are described herein. The method comprises obtaining a reflected color on a surface adjacent to a cabin window of an aircraft, generating an image having an image color in accordance with the reflected color on the surface adjacent to the cabin window, and displaying the image having the image color on a display device covering the cabin window.

Abstract: A slat (50) for an aircraft wing comprises a leading edge (51) defining a leading edge line (61), a trailing edge (52) defining a trailing edge line (62), the leading and trailing edges line defining a slat plane, the chord distance (69) extending normal to the leading edge and measured along the slat plane; an inboard edge extending between the leading and trailing edges; and an outboard edge (56) extending between the leading and trailing edges. The outboard edge comprises a first side portion having a projection on the plane defining a first side line (63), and a second side portion having a projection on the plane defining a second side line (64), the second side line being disposed at a first angle to the first side line and at a second angle to the leading edge line as it extends toward the inboard and trailing edges. A wing assembly and an aircraft including the slat are also disclosed.

Abstract: Systems and methods associated with electrical systems of aircraft are disclosed. A method disclosed herein comprises generating electricity using an electric generator operatively coupled to an engine of the aircraft, supplying the electricity generated using the electric generator to a baseline power bus; generating electricity using an electric starter generator operatively coupled to the engine; and supplying the electricity generated using the electric starter generator to a supplemental power bus independent from the baseline power bus.

Abstract: Trailing edge assemblies, couplers and methods for deploying a trailing edge flap of an aircraft wing are disclosed. An exemplary method disclosed herein comprises guiding an aft portion of the trailing edge flap (28) along an elongated track member (36C) as the trailing edge flap (28) moves toward the deployed position; guiding a forward portion of the trailing edge flap (28) along the elongated track member (36C) as the trailing edge flap (28) moves toward the deployed position; and accommodating transverse movement of the forward portion of the trailing edge flap (28) relative to the elongated track member (36C).

Abstract: A storage container (100) has a base (102) defining at least one storage compartment (202, 204, 206, 208, 210, 212), a top (104) movable between closed and opened positions, latching and locking assemblies. The latching assembly (500) has a latching actuator (110) movable between first and second positions. The latching assembly (500) locks the top (104) to the base (102) when the top (104) is in the closed position and the latching actuator (110) is in the first position and releases the top (104) from the base (102) when the latching actuator (110) is in the second position. The locking assembly has a lock actuator (801) having actuated and released positions. The top (104) is movable when the lock actuator (801) is in the actuated position. The locking assembly locking the top (104) in the open, closed, or an intermediate position when the lock actuator (801) is in the released position.

Abstract: The aircraft control systems and methods disclosed herein are configured to detect a residual error associated with a flight control computer of an aircraft and mitigate the effect(s) of such residual error in order to maintain safe operation of the aircraft. In some embodiments, the systems and methods are configured to detect an out-of-flight-envelope situation of the aircraft and determine whether or not the flight control computer is attempting to recover the aircraft from the out-of-flight-envelope situation. If the flight control computer is perceived as attempting to recover the aircraft from the out-of-flight-envelope situation, the flight control computer is permitted to continue controlling the aircraft. Otherwise, the excursion outside of the normal flight envelope is perceives as potentially having been caused by a residual error and the flight control computer is prevented from continuing to control the aircraft.

Abstract: A headrest for a seat having a backrest frame and a base. The headrest includes a displacement member mountable to the backrest frame to position a lower end of the displacement member in front of the backrest frame and above the base. The displacement member is displaceable relative to the backrest frame to adjust a height of the headrest. A tilt member extends between a pivot end pivotably mounted to the displacement member at a joint, and a head support end disposed above the pivot end to support a rear portion of the head. The joint defines a pivot axis and is positioned in front of the backrest frame and above the base. The tilt member is pivotable about the pivot axis to displace the head support end toward and away from the displacement member.

Abstract: Airstair systems and associated methods are disclosed. In one embodiment, the airstair comprises a deployable upper step, a primary deployment device and a secondary deployment device. The upper step is movable between a stowed configuration when a door of the aircraft is closed and a deployed configuration when the door is open. The primary deployment device resiliently biases the upper step toward the deployed configuration. The secondary deployment device is movable in coordination with a movement of the door and configured to drive the deployable upper step toward the deployed configuration during opening of the door and during a failure of the primary deployment device.

Abstract: Aircraft pitch control systems and methods are disclosed. An aircraft pitch control system (28) comprises a movable horizontal stabilizer (24) and an elevator (26) movably coupled to the horizontal stabilizer. The elevator is electronically geared to the horizontal stabilizer.

Abstract: Systems and methods for controlling a fixed-wing aircraft during flight are disclosed. The aircraft comprises first and second flight control surfaces of different types. The method comprises determining that a pilot command of the first flight control surface will excite a structural flexible mode of the aircraft and then executing the pilot command of the first flight control surface in conjunction with a command of the second flight control surface to mitigate the effect of the excitation of the structural flexible mode of the aircraft.