Abstract: A door arrangement for an aircraft landing gear bay includes a drive mechanism that is asymmetrically located on one side of the door, but symmetrically applies the opening and closing torque to a longitudinally centered location on the pivot axis of the door, to avoid twisting, bending or jamming of the door. The door includes a cover plate mounted on a support frame and a hollow pivot shaft. The door pivots about the axis of the pivot shaft, which is supported in two pivot bearings. The drive mechanism applies a torque to a drive shaft that extends coaxially into the hollow pivot shaft. The drive shaft is connected to the hollow pivot shaft by a torque-transmitting connection only at a location centered along the length of the pivot shaft between the two pivot bearings.

Abstract: A vehicle brake arrangement includes a packet of alternating stator brake disks and rotor brake disks that are parallel and rotatable relative to each other. Each stator brake disk includes a support ring, support arms that are circumferentially distributed about, connected to, and protruding radially from an outer circumference of the support ring, and plate-shaped brake segments respectively removably secured in segment-shaped spaces between neighboring ones of the support arms by pivotable latch bars and spring-biased catches engaging recesses of the brake segments. Each brake segment includes a plate-shaped carrier, and a brake pad adhered onto at least one major surface of the carrier. The pads are made of sintered metal and the rotor brake disks are made of a ceramic or ceramic composite. Selective frictional contact between the sintered metal brake pads and the ceramic rotor brake disks provides effective braking friction, and the brake segments are easily exchangeable.

Abstract: A door arrangement for an aircraft landing gear bay includes a drive mechanism that is asymmetrically located on one side of the door, but symmetrically applies the opening and closing torque to a longitudinally centered location on the pivot axis of the door, to avoid twisting, bending or jamming of the door. The door includes a cover plate mounted on a support frame and a hollow pivot shaft. The door pivots about the axis of the pivot shaft, which is supported in two pivot bearings. The drive mechanism applies a torque to a drive shaft that extends coaxially into the hollow pivot shaft. The drive shaft is connected to the hollow pivot shaft by a torque-transmitting connection only at a location centered along the length of the pivot shaft between the two pivot bearings.

Abstract: A vehicle brake arrangement includes a packet of alternating stator brake disks and rotor brake disks that are parallel and rotatable relative to each other. Each stator brake disk includes a support ring, support arms that are circumferentially distributed about, connected to, and protruding radially from an outer circumference of the support ring, and plate-shaped brake segments respectively removably secured in segment-shaped spaces between neighboring ones of the support arms by pivotable latch bars and spring-biased catches engaging recesses of the brake segments. Each brake segment includes a plate-shaped carrier, and a brake pad adhered onto at least one major surface of the carrier. The pads are made of sintered metal and the rotor brake disks are made of a ceramic or ceramic composite. Selective frictional contact between the sintered metal brake pads and the ceramic rotor brake disks provides effective braking friction, and the brake segments are easily exchangeable.