Abstract: An aircraft heated floor panel includes a first face sheet, a second face sheet opposite the first face sheet, and core with an electrically conductive core portion. The electrically conductive core portion supports the first face sheet and the second face sheet, and is electrically insulated from the external environment to receive electrical power, resistively generate heat, and communicate heat to the first face sheet.

Abstract: A method of attaching a pneumatic de-icer to an aircraft wing includes using two pressure sensitive adhesive layers. A first pressure sensitive adhesive layer is attached to a primed aircraft wing, while a second pressure sensitive adhesive layer is attached to the pneumatic de-icer. The two pressure sensitive adhesive layers are attached to each other to create a high energy bond between the pneumatic de-icer and the aircraft wing.

Abstract: An air supply line includes an aluminum tube with a one inch diameter, a network of fins located within the aluminum tube to promote heat exchange, and a wall structure containing a heater wrapped around the aluminum tube to allow for temperature control and prevent freezing upstream of valves.

Abstract: A water supply system includes a water storage tank having a storage tank outlet, the water storage tank configured to store a volume of water at a first pressure. A pressure tank is in fluid communication with the water storage tank and is periodically fillable with water from the water storage tank. An air source is fluidly connected to the pressure tank to pressurize the volume of water in the pressure tank to a second pressure greater than the first pressure. A pressure tank output line is fluidly connected to the pressure tank to output water from the pressure tank.

Abstract: A method of attaching a pneumatic de-icer to an aircraft wing includes using two pressure sensitive adhesive layers. A first pressure sensitive adhesive layer is attached to a primed aircraft wing, while a second pressure sensitive adhesive layer is attached to the pneumatic de-icer. The two pressure sensitive adhesive layers are attached to each other to create a high energy bond between the pneumatic de-icer and the aircraft wing.

Abstract: An air supply line includes an aluminum tube with a one inch diameter, a network of fins located within the aluminum tube to promote heat exchange, and a wall structure containing a heater wrapped around the aluminum tube to allow for temperature control and prevent freezing upstream of valves.

Abstract: A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. The hub face has a non-planar configuration such that a limited portion of a surface area of the hub face is arranged within a plane oriented perpendicular to a direction of travel of an airflow upstream from the hub face when the ram air turbine is in a deployed position.

Abstract: A water supply system includes a water storage tank having a storage tank outlet, the water storage tank configured to store a volume of water at a first pressure. A pressure tank is in fluid communication with the water storage tank and is periodically fillable with water from the water storage tank. An air source is fluidly connected to the pressure tank to pressurize the volume of water in the pressure tank to a second pressure greater than the first pressure. A pressure tank output line is fluidly connected to the pressure tank to output water from the pressure tank.

Abstract: A drain mast that releases fluid into an airstream includes two fairing bodies, with each fairing body having an outer wall, an inner wall opposite of the outer wall, a drain cavity extending through the inner wall, a mounting portion, and a drain portion opposite of the mounting portion. The two fairing bodies are joined together at their inner walls such that the two mounting portions are adjacent, such that the drain cavities form a mast cavity, and such that the drain portions are adjacent to each other and together form a foot. The foot includes a drain outlet connected to the mast cavity, and a post-exit stage positioned downstream of the drain outlet with the post-exit stage being located closer to the mounting portions than the drain outlet.

Abstract: A method of operating a monitored deicing system may comprise attempting, by a health monitor, to pass an electrical current through a signal wire disposed along a boot seam of a pneumatic deicer, evaluating, by the health monitor, a continuity of the signal wire in response to the electrical current, identifying, by the health monitor, that the signal wire lacks continuity in response to the evaluating, and determining, by the health monitor, that the boot seam has broken in response to the identification that the signal wire lacks continuity.

Abstract: A method of operating a monitored deicing system may comprise attempting, by a health monitor, to pass an electrical current through a signal wire disposed along a boot seam of a pneumatic deicer, evaluating, by the health monitor, a continuity of the signal wire in response to the electrical current, identifying, by the health monitor, that the signal wire lacks continuity in response to the evaluating, and determining, by the health monitor, that the boot seam has broken in response to the identification that the signal wire lacks continuity.

Abstract: A monitored deicing system is disclosed. The monitored deicing system may have a pneumatic deicer and a signal wire running through the pneumatic deicer. The signal wire may break in response to a failure of the pneumatic deicer, such as a torn boot seam. A health monitor may check the continuity of the signal wire in order to provide an alert upon detecting such a failure.

Abstract: A monitored deicing system is disclosed. The monitored deicing system may have a pneumatic deicer and a signal wire running through the pneumatic deicer. The signal wire may break in response to a failure of the pneumatic deicer, such as a torn boot seam. A health monitor may check the continuity of the signal wire in order to provide an alert upon detecting such a failure.

Abstract: A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. The hub face has a non-planar configuration such that a limited portion of a surface area of the hub face is arranged within a plane oriented perpendicular to a direction of travel of an airflow upstream from the hub face when the ram air turbine is in a deployed position.

Abstract: One embodiment includes a high capacity water heater assembly. The assembly includes a vessel with an inlet and an outlet, with water delivered to the vessel through the inlet. Also included is a heating element attached to the vessel for heating the water delivered to the vessel, an active mixing valve in fluid connection with the outlet of the vessel, and a water temperature sensor attached to the vessel to communicate data used for powering on and off the heating element.

Abstract: One embodiment includes a high capacity water heater assembly. The assembly includes a vessel with an inlet and an outlet, with water delivered to the vessel through the inlet. Also included is a heating element attached to the vessel for heating the water delivered to the vessel, an active mixing valve in fluid connection with the outlet of the vessel, and a water temperature sensor attached to the vessel to communicate data used for powering on and off the heating element.

Abstract: A drainmast which releases water into an airstream traveling in a fore-aft direction includes a water-discharging exit on its underside for communicating with the airstream, a post-exit stage on its underside situated aft of the water-discharging exit, where the water-discharging exit is vertically offset downward from the post-exit stage. The drainmast also includes a fairing having a mounting flange and a mast projecting downward from the mounting flange, the mast having a main body with a window and a door fastened to the main body to close the window.

Abstract: A drainmast (200) comprises an exit-defining foot (300), entrance-defining draintubes (400,500), a heater (600), and a fairing (700). The heater (600) heats the draintubes (400,500) to prevent water from freezing therein and heats the foot (300) to prevent ice from accumulating thereon. The foot (300) incorporates fluid-steering features to efficiently and effectively discharge drain water into the airstream (A).

Abstract: An anti-icing blanket for preventing the accumulation of ice on aircraft surfaces due to cold soaked fuel disposed beneath the surface comprises a thermally insulative layer bonded to the aircraft surface and an erosion resistant layer disposed over the insulative layer.

Abstract: An improved brush assembly is provided for conducting electrical power from a fixed power system to a rotating ice protection system. The invention is especially adapted for use with an aircraft propeller ice protection system. According to an aspect of the invention, the brush assembly has a housing with a brush enclosure, the enclosure having slots provided therein for slidably receiving a plurality of brushes. A plurality of wear inserts are disposed in the slots adjacent the brushes in order to provide a wearing surface to prevent excessive wear of the brushes.