Abstract: A guide roller for a cargo doorway of an aircraft is provided. The guide roller includes a mandrel having a first end, a second end, and a plurality of cavities disposed between the first end and the second end; and a material injected into an inside the plurality of cavities of the mandrel.

Abstract: A guide roller for a cargo doorway of an aircraft is provided. The guide roller includes a mandrel, a first layer of a second rubber wrapping compound disposed circumferentially around the mandrel, at least one first layer of a first rubber wrapping compound disposed circumferentially around the first layer of the second rubber wrapping compound, a second layer of the second rubber wrapping compound disposed circumferentially around the at least one first layer of the first rubber wrapping compound, at least one second layer of the first rubber wrapping compound disposed circumferentially around the second layer of the second rubber wrapping compound, and at least one third layer of the second rubber wrapping compound disposed circumferentially around the at least one second layer of the first rubber wrapping compound.

Abstract: An actuator assembly may comprise a control unit and a shape memory coil spring in electrical communication with the control unit. The shape memory coil spring may increase from a first length to a second length in response to receiving a current from the control unit. The shape memory coil spring may be configured to translate a spacer and/or a slider shaft in response to increasing in length. The shape memory coil spring may be configured to transition a pawl in a latch assembly from a retracted state to an erected state, and vice versa.

Abstract: A system for providing an indication of slide pack density is provided. The system includes a set of stretch sensors and a control unit coupled to the set of stretch sensors. The control unit is configured to receive an input from a stretch sensor in the set of stretch sensors; compare the input to a first predetermined threshold; and, responsive to the input meeting or exceeding the first predetermined threshold, transmit a signal that causes an indicator to illuminate, providing an alert associated with a condition of a slide pack.

Abstract: A brake roller assembly may comprise: a shaft; a first roller bearing coupled to the shaft and disposed at a first axial end of the shaft a second roller bearing coupled to the shaft and disposed at a second axial end of the shaft; a roller cylinder disposed radially outward of the first roller bearing and the second roller bearing; and a braking arrangement, including a plurality of electrodes, and a plurality of rotor disks coupled to the roller cylinder, each rotor disk in the plurality of rotor disks disposed between an anode in the plurality of electrodes and a cathode in the plurality of electrodes.

Abstract: A flexible coupling includes a first flange having an outer edge, a first surface, a second surface opposite the first surface, and a first plurality of passages. A second flange including an outer edge section, a first surface section, a second surface section opposite the first surface section, and a second plurality of passages. A connecting element extends between and connecting the first flange and the second flange through one of the first plurality of passages and one of the second plurality passages. The connecting element includes a connecting member having a first stop element and a second stop element. A compliant component is arranged on the connecting element. The compliant component is positioned on the connecting member between one of: the first stop element and the first surface; the second stop element and the second surface section; and between the second surface and the first surface section.

Abstract: A landing gear assembly is provided. The landing gear assembly includes a shock strut. The shock strut includes a shock strut cylinder and a shock strut piston slidably disposed within the shock strut cylinder. The landing gear assembly further includes a temperature control unit assembly disposed within the shock strut cylinder. The temperature control unit assembly is configured to, responsive to a temperature within the shock strut cylinder falling below a predetermined temperature, circulate heated fluid into a chamber of the shock strut cylinder to heat gas within the shock strut cylinder.

Abstract: A mobile cargo controller for a cargo handling system is provided. The mobile cargo controller includes at least one inertial measurement unit configured to: identify a true forward position of a cargo compartment in which the cargo handling system operates, determine an orientation of the mobile cargo controller, and, using the true forward position of the cargo compartment and the orientation of the mobile cargo controller, identify a frame of reference for the mobile cargo controller within the cargo compartment.

Abstract: An anti-roll out restraint assembly for a cargo handling system is provided. The anti-roll out restraint assembly including a housing, a restraint head coupled to the housing, a cam path drive pin coupled to the restraint head, a cam path lever coupled to the housing, and a set of compression springs. The restraint head is configured to vertically translate between a deployed position and a stowed position and between the stowed position and the deployed position. The cam path lever is configured to restrain the restraint head via the cam path drive pin responsive to the restraint head being in the stowed position. The set of compression springs are configured to apply at least one of a constant or nearly constant upward force on the restraint head.

Abstract: The present disclosure provides for methodologies for height measurement in pneumatic deicer boots for aircraft, and related models, systems and methods of use. More particularly, the present disclosure provides for methods, models, systems and applications to detect the life or failure of pneumatic deicer boots for aircraft. A method for detecting the life or failure of pneumatic deicer boots for aircraft is provided.

Abstract: An actuator is disclosed herein. The actuator includes a drive body including a bottom surface, the bottom surface having a first side and an opposing second side, a magneto strictive material disposed within the drive body and contacting the first side of the bottom surface of the drive body, a solenoid disposed within the drive body and surrounding the magneto strictive material, a drive rod extending through the magneto strictive material and through the bottom surface of the drive body, and a spring disposed adjacent the second side of the bottom surface of the drive body, wherein the drive rod extends through the spring.

Abstract: A dual-sleeve, locking adjustment arrangement includes a position-sensitive component comprising an aperture, an outer eccentric sleeve disposed in the aperture, and an inner eccentric sleeve disposed in the outer sleeve. Rotation of the outer sleeve with respect to the position-sensitive component and the inner sleeve drives rotation of the position-sensitive component to adjust an angular position of the component.

Abstract: A brake control system of the present disclosure calibrates a servo valve and calculates a calibrated transfer function associated with the servo valve for precise braking in open-loop mode. The calibration steps may include determining i) whether an aircraft is on a ground surface, ii) whether the aircraft is not moving relative to the ground surface, and iii) whether braking is applied to a brake system of the aircraft. The brake control unit may calibrate the servo valve in response to the brake control unit determining that i) the aircraft is on the ground surface, ii) the aircraft is not moving relative to the ground surface, and iii) the braking is not applied to the brake system of the aircraft. The calibration process includes sending two or more test currents to the servo valve, and determining braking pressures associated with those test currents to calculate the transfer function.

Abstract: An in-floor adapter for a cargo deck of a cargo handling system may comprise: a plate extending from a proximal end to a distal end; a pocket disposed in the plate, the pocket having a sidewall and a bottom wall; a fitting disposed in the pocket, the fitting configured to mount a leg of a seat; and a slot disposed through the plate, the slot configured to guide an attachment mechanism during installation of the in-floor adapter in the cargo deck.

Abstract: A method of manufacturing an aircraft metallic faucet with an anti-microbial coating may comprise: disposing the aircraft metallic faucet in a piranha solution; washing the aircraft metallic faucet; and coating a surface of the aircraft metallic faucet with a Si-Quat based coating. A method of manufacturing an aircraft metallic faucet with a hybrid anti-microbial coating with cross-linkers may comprise: disposing the aircraft metallic faucet in a piranha solution; washing the aircraft metallic faucet; coating a surface of the aircraft metallic faucet with a hybrid Si-Quat coating with crosslinkers; and curing the hybrid Si-Quat coating at a temperature between 60° C. (140° F.) and 100° C. (212° F.).

Abstract: A method of forming a rod feedstock for titanium stir friction welding additive manufacturing may comprise: mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend; at least one of die pressing the powder blend to form a die pressed powder or continuously powder rolling the powder blend to form a die pressed powder; and sintering the powder blend to form a rod feedstock having a cross-sectional profile.

Abstract: A method of fabricating a composite component is provided. The method includes forming a fibrous preform by: forming a first graphite powder and phenolic resin compound mixture layer over a first textile layer, the first graphite powder and phenolic resin compound mixture layer having a first group of graphite particles; disposing a second textile layer over the first graphite powder and phenolic resin compound mixture layer; forming a second graphite powder and phenolic resin compound mixture layer over the second textile layer, the second graphite powder and phenolic resin compound mixture layer having a second group of graphite particles; and disposing a third textile layer over the second graphite powder and phenolic resin compound mixture layer; and densifying the fibrous preform.

Abstract: A shock strut assembly is disclosed herein. The shock strut assembly includes a shock strut cylinder defining a mixed fluid chamber, a shock strut piston defining a liquid chamber, the shock strut piston operatively coupled to slide within the shock strut cylinder, an orifice support tube coupled to the shock strut cylinder and defining an orifice between the liquid chamber and the mixed fluid chamber, a retainer housing coupled to the orifice support tube and configured to restrict a flow of liquid from the liquid chamber to the mixed fluid chamber, a spring retainer coupled to the orifice support tube and disposed over the retainer housing, and a spring disposed between the retainer housing and the spring retainer.

Abstract: A touchless system for an aircraft cabin is disclosed. The system includes machine-readable codes placed on passenger seats and other aircraft surfaces that may be scanned and linked to cabin control systems through an application installed on personal portable electronic devices. The system also includes a communication system linked to the personal portable electronic devices via the application and linked to the cabin control systems that facilitates the control of one or more control systems by the personal portable electronic device. One of the cabin control systems is configured as an overhead storage container configured with a gesture sensing system, allowing the storage lid to be opened through specific gestures.

Abstract: In accordance with at least one aspect of this disclosure, a system (e.g., for aircraft systems) includes an actuator cylinder. The actuator cylinder comprises, a composite cylinder body, the composite cylinder body being axi-symmetric across at least a longitudinal axis. In embodiments, the composite cylinder body can include, a first plurality of plies laid in a first direction relative to the longitudinal axis and second plurality of plies laid in a second direction relative to the longitudinal axis different from the first direction to form a hollow chamber. The actuator cylinder can include a first metallic reinforcing ring and a second metallic reinforcing ring disposed at respective axial ends of the cylinder body configured to anchor the first plurality of plies and provide an axial reaction under axial stress and configured to provide load transfer from the cylinder body to one or more adjacent actuator components.