Abstract: A facility-based dual-purpose conditioned air blower system includes a heat exchange unit, a diverter apparatus, and a centrifugal blower. The heat exchange unit includes an ambient air inlet, heat exchange elements, and a conditioned air outlet. The diverter apparatus includes a diverter inlet fluidly coupled to the conditioned air outlet of the heat exchange unit, a first diverter outlet to the facility, and a second diverter outlet. The diverter apparatus is moveable between a first position wherein the first diverter outlet is closed and the second diverter outlet is open, and a second position wherein the first diverter outlet is open and the second diverter outlet is closed. The centrifugal blower includes a blower inlet fluidly coupled to the second diverter outlet of the diverter apparatus, and a blower outlet positioned to ventilate a trailer interior with conditioned air from the conditioned air outlet of the heat exchange unit.

Abstract: A workpiece positioner assembly including a headstock apparatus having a motor and a headstock swing arm rotatably supported on the headstock apparatus. The headstock swing arm is configured to be rotated by the motor. The assembly includes a tailstock apparatus and a tailstock swing arm rotatably supported on the tailstock apparatus. The tailstock swing arm and the headstock swing arm are configured to support a workpiece. The assembly also includes a beam coupled to the headstock swing arm and to the tailstock swing arm to transmit rotation of the headstock swing arm to the tailstock swing arm, and a compliance assembly. The compliance assembly is provided between at least one of the headstock swing arm and the beam to enable relative movement between the headstock swing arm and the beam, and the tailstock swing arm and the beam to enable relative movement between the tailstock swing arm and the beam.

Abstract: A workpiece positioner assembly comprises a headstock apparatus that is configured to rotate a workpiece A headstock interface assembly is configured to secure the workpiece to the headstock apparatus and comprises a bearing configured to enable pitch, yaw and roll movement of the headstock interface assembly relative to the headstock apparatus. The workpiece positioner assembly further comprises a tailstock apparatus configured to support the workpiece in cooperation with the headstock apparatus. The tailstock apparatus comprises a tailstock interface assembly that is configured to secure the workpiece to the tailstock apparatus. The tailstock interface assembly further comprises a tailstock bearing configured to enable axial movement of the workpiece relative to the tailstock apparatus.

Abstract: A landing light is provided for mounting on an aircraft. Electronic control devices actuate drive elements to pivot a lamphead over a range of operational positions. The electronic control device having a magnetic switch array actuated by magnets connected to the drive elements.