Abstract: A blade pitch actuation mechanism comprising a rotating race member in which is formed a race configured to receive a trunnion pin attached to a blade, whereby the race defines a cam profile such that rotation of the race member causes the trunnion pin received in the race to rotate as it slides over the cam profile.

Abstract: A brush assembly for transmitting electrical power to a rotating component includes one or more electrically conductive brushes, a housing configured to receive the one or more brushes and hold the one or more brushes in alignment with an opposing surface, and one or more brush carriers. Each carrier is configured to receive and clip onto a respective brush such that each of the one or more brushes can be removed from its respective carrier by unclipping the carrier from the brush.

Abstract: A blade pitch actuation mechanism comprising a rotating race member in which is formed a race configured to receive a trunnion pin attached to a blade, whereby the race defines a cam profile such that rotation of the race member causes the trunnion pin received in the race to rotate as it slides over the cam profile.

Abstract: A system for providing pressure/load control at an end stroke stop is provided. The system includes an actuator housing having an end stroke stop and a first actuator housing side, an actuator piston provided in the actuator housing, wherein the actuator piston is movable along a longitudinal axis (A), the actuator piston having a first piston portion perpendicular to the longitudinal axis (A), and means for regulating the pressure/load control at the end stroke stop provided in the first piston portion, wherein the means for regulating the pressure/load control at the end stroke stop is configured to move from a closed position to an open position when in contact with the first actuator housing side.

Abstract: A system for providing pressure/load control at an end stroke stop is provided. The system includes an actuator housing having an end stroke stop and a first actuator housing side, an actuator piston provided in the actuator housing, wherein the actuator piston is movable along a longitudinal axis (A), the actuator piston having a first piston portion perpendicular to the longitudinal axis (A), and means for regulating the pressure/load control at the end stroke stop provided in the first piston portion, wherein the means for regulating the pressure/load control at the end stroke stop is configured to move from a closed position to an open position when in contact with the first actuator housing side.

Abstract: A brush assembly for transmitting electrical power to a rotating component includes one or more electrically conductive brushes, a housing configured to receive the one or more brushes and hold the one or more brushes in alignment with an opposing surface, and one or more brush carriers. Each carrier is configured to receive and clip onto a respective brush such that each of the one or more brushes can be removed from its respective carrier by unclipping the carrier from the brush.

Abstract: A blade comprises a blade body and blade de-icer located on the leading edge of the blade body. The blade de-icer comprises a first heater part bonded to an external surface of a face side of the blade body and a separate second heater part bonded to an external surface of a camber side of the blade body. The first and second heater parts each extend to the leading edge of the blade body. Each heater part comprises an electrical heating element arranged therein sandwiched between an inner layer and an outer layer of the heater part.

Abstract: A propeller blade assembly includes an airfoil having a base, a tip and a leading edge and a root extending from the base of the airfoil for attaching the airfoil to a hub. The assembly further comprises an electrically conductive sheath for electrically grounding the airfoil. The electrically conductive sheath is attached to the leading edge of the airfoil and extends from the base to the tip of the airfoil. The assembly further comprises an electrically conductive element for electrically connecting the electrically conductive sheath to the root or hub. Also disclosed is an electrically conductive sheath for grounding an airfoil and a method for assembling a propeller blade assembly.

Abstract: A web based method for the configuration of and maintaining assets from web pages or a web based shopping cart during the procurement process. When an individual is purchasing a product or intends to purchase a product the web based method allows the user to perform critical steps in the asset management process. The web based method allows users to implement and maintain the components of assets during the procurement process. The information that the user inputs during the shopping process is captured and placed in a common database that may be SQL based. This captured information can later be modified via web pages. Existing assets can be upgraded using our web-based method during the procurement process.