Abstract: A power drive unit (PDU) having a magnetic hold brake for use in an aircraft is disclosed herein. The PDU includes a wheel configured to convey cargo through a portion of the aircraft, a motor coupled to the wheel, a brake disk, a solenoid configured to apply a first force to move the brake disk in a first direction to resist rotation of the motor, wherein the solenoid is further configured to apply a second force to move the brake disk in a second direction opposite the first direction to allow the motor to rotate, and a magnet configured to apply a third force to the brake disk, the third force being in the first direction to apply a drag force to the motor.

Abstract: A tray connector is disclosed herein. The tray connector includes a first side rail, a second side rail, parallel to the first side rail, a cross member extending from the first side rail to the second side rail, a pin extending from within the cross member and through the first side rail, and a tab configured to retract the pin.

Abstract: A quick-connect fitting for a convertible cargo handling assembly may comprise a fixed portion and a coupling component. The fixed portion may be secured to an aircraft frame structure. The coupling component may be coupled to a removable cargo handling component. The coupling component may be configured to rotate relative to the fixed portion.

Abstract: A quick-connect fitting for a convertible cargo handling assembly may comprise a fixed portion and a coupling component. The fixed portion may be secured to an aircraft frame structure. The coupling component may be coupled to a removable cargo handling component. The coupling component may be configured to rotate relative to the fixed portion.

Abstract: A convertible cargo handling assembly may comprise a mat, a fitting, and a removable cargo handling component. The fitting may include a fixed component and a coupling component. The fixed component may be located in an opening defined by the mat. The removable cargo handling component may be located over the mat and removably coupled to the fixed portion of the fitting via a coupling between the coupling component and the fixed component.

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 cargo restraint system comprises a plurality of cargo restraint assemblies. Each cargo restraint assembly in the plurality of cargo restraint assemblies may be removably coupled to a cargo deck in various configurations. The plurality of cargo restraint assemblies may be reconfigurable based on a size of a plurality of unit load devices (ULDs) to be loaded and restrained. Each cargo restraint assembly may restrain four or fewer corners of respective ULDs simultaneously.

Abstract: A cargo handling system may comprise a plurality of trays and a topskin. The plurality of trays may structurally support the topskin. The plurality of trays may be contiguously covered. The plurality of trays may be partially covered by the topskin. At least one of a ball transfer unit (BTU) or a roller assembly may be configured to be coupled to the topskin and/or disposed within a groove of a tray in the plurality of trays.

Abstract: A cargo handling system includes a conveyance surface; a first power drive unit having a first drive roller; a first restraint device; one or more sensors configured to provide positional data corresponding to a current location of a unit load device on the conveyance surface; and a first power drive unit agent configured for communication with the one or more sensors, the first power drive unit agent configured to selectively activate and deactivate the first drive roller and the first restraint device based on the positional data.

Abstract: A roller assembly comprises a first axle having a first inner shaft and a second axle having a second inner shaft. The roller assembly may further comprise a plurality of roller elements between the first inner shaft and the second inner shaft. The roller assembly may further comprise a roller disposed between a first tension strap and a second tensions strap.

Abstract: A cargo handling system includes a conveyance surface; a first power drive unit having a first drive roller; a first restraint device; one or more sensors configured to provide positional data corresponding to a current location of a unit load device on the conveyance surface; a first power drive unit controller configured for communication with the one or more sensors, the first power drive unit configured to selectively activate and deactivate the first drive roller and the first restraint device based on the positional data and a second power drive unit and a second power drive unit controller configured for communication with the sensor, the second power drive unit controller configured to selectively activate and deactivate a second drive roller based on the positional data.

Abstract: A circuit board assembly for retrofitting a circuit board on a power drive unit (PDU) may comprise an enclosure, a circuit board disposed in the enclosure, and a potting component disposed in the enclosure. The circuit board assembly may further comprise a dielectric sheet and a backing sheet. The dielectric sheet may be disposed between the backing sheet and the printed circuit board assembly.

Abstract: A cargo handling system is disclosed. In various embodiments, the cargo handling system includes a conveyance surface having a tray defining an interior section and a rail section; a power drive unit disposed within the interior section; and a power bus routed along a length of the rail section and configured to supply power to the power drive unit.

Abstract: A convertible cargo handling assembly may comprise a mat, a fitting, and a removable cargo handling component. The fitting may include a fixed component and a coupling component. The fixed component may be located in an opening defined by the mat. The removable cargo handling component may be located over the mat and removably coupled to the fixed portion of the fitting via a coupling between the coupling component and the fixed component.

Abstract: A quick-connect fitting for a convertible cargo handling assembly may comprise a fixed portion and a coupling component. The fixed portion may be secured to an aircraft frame structure. The coupling component may be coupled to a removable cargo handling component. The coupling component may be configured to rotate relative to the fixed portion.

Abstract: A cargo handling system is disclosed. In various embodiments, the cargo handling system includes a conveyance surface having a tray defining an interior section and a rail section; a power drive unit disposed within the interior section; and a power bus routed along a length of the rail section and configured to supply power to the power drive unit.

Abstract: A cargo handling system is disclosed. In various embodiments, the cargo handling system includes a conveyance surface; a first power drive unit having a first drive roller; a first restraint device; one or more sensors configured to provide positional data corresponding to a current location of a unit load device on the conveyance surface; and a first power drive unit agent configured for communication with the one or more sensors, the first power drive unit agent configured to selectively activate and deactivate the first drive roller and the first restraint device based on the positional data.

Abstract: The present disclosure relates to an apparatus to be used in a system that adapts a pallet to cargo handling system. This includes the use of adaptor panels to alter the length of the pallet so that it may conform to a standard pallet length. The present disclosure also relates to a method of use for the adaptor system in applying it to a pallet.

Abstract: A lift roller may include a hub having a first surface, a second surface opposite the first surface, and a radially outward surface. The hub may define a channel extending through the hub from the first surface to the second surface. The lift roller may also include a rim portion rotatably disposed about the radially outward surface of the hub and a boss disposed on one of the first surface and the second surface.

Abstract: A lift roller may include a hub having a first surface, a second surface opposite the first surface, and a radially outward surface. The hub may define a channel extending through the hub from the first surface to the second surface. The lift roller may also include a rim portion rotatably disposed about the radially outward surface of the hub and a boss disposed on one of the first surface and the second surface.