Abstract: A formation method is provided during which a cellular core is provided. The cellular core includes a plurality of cavities that include a first cavity. Each of the cavities extends through the cellular core. A metal substrate is disposed within the first cavity. The metal substrate is electroplated to form a septum within the first cavity. The septum is bonded to the cellular core.

Abstract: The present disclosure provides for ice protection heater assemblies, and related methods of fabrication and use. More particularly, the present disclosure provides for chordwise ice protection heater assemblies for aircraft or the like. The heater assemblies provide that the heater zones for the ice protection heater assembly are designed such that the electricity mainly flows along the chord of the aircraft component (e.g., wing). This puts the electrical connection points above and below as well as behind the stagnation point of the aircraft component. The electrical connection points are thus behind the area to be protected from icing via the heater assembly.

Abstract: A system is provided for an aircraft. This aircraft system includes an aircraft wing extending spanwise from a wing base to a wing tip. The aircraft wing extends chordwise from a leading edge to a trailing edge. The aircraft wing extends laterally between a first surface and a second surface. The aircraft wing includes a first section, a second section and a third section. The second section extends spanwise between and connects the third section and the first section. The second section is pivotally connected to first section at a first hinge line. The third section is pivotally connected to the second section at a second hinge line that is angularly offset from the first hinge line by a first acute angle.

Abstract: An aircraft ice protection system includes a frequency a frequency dependent susceptor coupled to a critical surface of an aircraft. A radio frequency (RF) energy source is configured to apply RF energy to the frequency dependent susceptor. The aircraft ice protection system is configured to selectively operate in a susceptor absorbing mode and a water absorbing mode. The aircraft ice protection system operates in the susceptor absorbing mode until a Faraday layer associated with ice formed on the critical surface reaches a target characteristic. When the target characteristic is met, the aircraft ice protection system initiates the water absorbing mode.

Abstract: An aircraft ice protection system includes a frequency a frequency dependent susceptor coupled to a critical surface of an aircraft. A radio frequency (RF) energy source is configured to apply RF energy to the frequency dependent susceptor. The aircraft ice protection system is configured to selectively operate in a susceptor absorbing mode and a water absorbing mode. The aircraft ice protection system operates in the susceptor absorbing mode until a Faraday layer associated with ice formed on the critical surface reaches a target characteristic. When the target characteristic is met, the aircraft ice protection system initiates the water absorbing mode.

Abstract: A method for dehumidifying a perforated acoustic skin includes disposing a sheet of material over a perforated acoustic skin, sealing a periphery of the sheet of material to the perforated acoustic skin to form a cavity between the sheet of material and the perforated acoustic skin, disposing at least one dehumidifier in fluid communication with the cavity, and activating the dehumidifier to remove moist air from a core of the perforated acoustic skin. The dehumidifier(s) may be mounted to the sheet of material.

Abstract: A formation method is provided during which a cellular core is provided. The cellular core includes a plurality of cavities that include a first cavity. Each of the cavities extends through the cellular core. A metal substrate is disposed within the first cavity. The metal substrate is electroplated to form a septum within the first cavity. The septum is bonded to the cellular core.

Abstract: A multilayer heating structure for controlling ice accumulation on a surface of an aircraft includes a carbon nano-tube (CNT) heater. The heater includes: a CNT layer; a first encapsulation layer disposed on a first side of the CNT layer formed of a first encapsulation layer thermoplastic material; and a second encapsulation layer disposed on a second side of the CNT layer formed of a second encapsulation layer thermoplastic material. The structure further includes for and aft composite structures. The first and second encapsulation layer thermoplastic materials have higher melting temperatures that one or both the fore composite structure thermoplastic material and the aft composite structure thermoplastic material.