Abstract: An assembly includes a first tube including a first flange at one end, wherein the first flange includes a first knife-edge ring defined in an axial face thereof. A second tube includes a second flange at one end, wherein the second flange includes a second knife-edge ring defined in an axial face thereof. A gasket is seated between the first and second flanges. The gasket is in a deformed state conforming to the first and second knife-edge rings to seal a space inside the first and second tubes from an external environment. A nut is included radially outward from the first and second flanges, wherein the nut includes internal threads engaged to compress the first and second flanges toward one another.

Abstract: A transparent wearable data display having a source of collimated light, a deflector for deflecting the collimated light into a scanned beam, and a first of switchable grating elements sandwiched between first and second parallel transparent substrates, which together functioning as a first light guide. A first coupling is provided for directing the scanned beam into a first total internal reflection (TIR) light path of the first light guide along the first array column. The grating elements having diffracting and non-diffracting states, in their diffracting state deflecting light out of said light guide. The grating elements arc switchable into their diffracting states one group of elements at a time.

Abstract: A system and method for performing time-dependent reliability prediction of a printed circuit board (PCB) embedded in a sensor that monitors the health (viz., performance) of operating equipment subject to different environmental stressors. The method includes developing a digital twin (DT) of the physical PCB, generating sensor data, transmitting the sensor data, and receiving sensor data and historical conditional data by the twinning module, wherein the historical condition data includes known failure data of one or more electronic components of the circuit board based on an internal condition or and external condition. The method further includes embedded physics-based reliability models informed by inputs from the sensor data and the historical conditional data, generating a real-time failure prediction signal based on the physics-based reliability models, and reporting the real-time failure prediction signal.

Abstract: An apparatus with an anti-tamper architecture includes a substrate and a layer of a pyrotechnic composite arranged on a surface of the substrate. The pyrotechnic composite includes a metal and a metal oxide, and the layer has a thickness of about 1 micrometer to about 10 millimeters. A reaction of the pyrotechnic composite is an exothermic reaction and at least partially fractures the substrate after the reaction is initiated.

Abstract: A system may include a processor configured to: receive ambient data from an environment; calculate an average amplitude of the ambient data as a measure of a noise floor; receive a signal of interest found by the signal exceeding a noise riding threshold, the noise riding floor being an upward offset from the noise floor; calculate a running average for amplitude and frequency of the signal of interest; calculate a running variance for the amplitude and the frequency of the signal of interest; use the running average and the running variance to provide an adjustment to limits for modulation detection; use an offset from the noise riding threshold to provide a signal qualification minimum amplitude; and qualify the signal of interest based at least on the signal qualification minimum amplitude.

Abstract: A system may include a display and a processor. The processor may be configured to: break down two-dimensional weather radar reflectivity data into cells, each cell of the cells having a maximum rainfall rate location and a geometric area; prioritize the cells based at least on each cell's proximity to the aircraft, each cell's intensity, each cell's growth rate, each cell's storm top altitude relative to the aircraft altitude, and/or a threat convective level of the cell to select a highest priority cell; and output, to the display, a highest priority azimuth slice vertical radar image of the two-dimensional weather radar reflectivity data as graphical data, the highest priority azimuth slice vertical radar image corresponding to an azimuth slice of the two-dimensional weather radar reflectivity data for the highest priority cell. The display may be configured to display the highest priority azimuth slice vertical radar image.

Abstract: A system may include a processor configured to: obtain an image of an airport terminal chart; based on a latitudinal set of characters, determine a latitude for each line of latitude; based on the latitude for each line of latitude and a first image distance between the lines of latitude, determine a first ratio of latitudinal degrees between the lines of latitude to the first image distance; based on a longitudinal set of characters, determine a longitude for each line of longitude; based on the longitude for each line of longitude and a second image distance between the lines of longitude, determine a second ratio of longitudinal degrees between the lines of longitude to the second image distance; and output information associated with the first ratio, the second ratio, the determined latitude for each line of latitude, and the determined longitude for each line of longitude.

Abstract: A system and method for detecting and preventing cyberintrusion of a protected system incorporates neural networks having a training mode and a host-accessible (e.g., non-training) mode. When in training mode, the neural networks observe data exchanges with a protected system via interfaces (based on test inputs) and generate system templates corresponding to observed normal behaviors of the interfaces (including “gold standard” behavior indicative of optimal performance behaviors and/or minimal threat of cyberintrusion). When in host-accessible mode, the neural networks observe operating behaviors of the interfaces for each exchange via the interfaces and apply stored system templates to the system data to most closely approximate the optimal behavior set.

Abstract: A broadband switch includes multi-stage electromechanical ganged stage relays. The ganged stage relays provide at least 65 dB of electrical isolation from active broadband input or active broadband output to all non-active broadband inputs. In a further aspect, the ganged stage relays provide at least 100 dB of electrical isolation from 1 kHz to 100 MHz from broadband inputs and broadband output to power inputs.

Abstract: An ejection handle separation system is disclosed herein. The ejection handle separation system includes an ejection seat handle, a rotatable component, a cable connected to the handle and coupled to the rotatable component, wherein the rotatable component rotates in response to pulling the ejection seat handle, and an anchor inserted into the rotatable component and configured to releasably connect the cable to the rotatable component.

Abstract: A pilot may be more stressed during take-off or landing, which is not abnormal. Physiological data of the pilot may be received. Placing the physiological data in context of the current situation may be advantageous in detecting anomalous behaviors of the pilot. A system and method are described. The system and method receive a stream of images from a camera and detect whether the pilot is exhibiting anomalous behavior. The anomalous behavior is further put into context based on the flight state and various avionics information.

Abstract: A universal passenger seat system includes a system controller and a physical connection interface with a standardized communication protocol for coupling the system controller with seating hardware, at least one peripheral device, and at least one network connection. The system controller can also be in communication with a biometric sensor, a physiological sensor, and/or a situational data sensor. An artificial intelligence engine is communicatively coupled to or embedded within the system controller. The artificial intelligence engine is configured to determine a passenger status based on data received from the biometric sensor, the physiological sensor, and/or the situational data sensor and is further configured to generate one or more communication signals based on the data. For example, the communication signals can include control signals for the seating hardware, information signals for peripheral devices, or status signals for transmission via the network connection.

Abstract: A vibrotactile system for an aircraft may comprise a plurality of tactors and a tactor driver operably coupled to the plurality of tactors. The tactor driver may be configured to determine a vibration sequence for the plurality of tactors in response to a signal received from an aircraft controller, and to send vibration commands corresponding to the vibration sequence to the plurality of tactors.

Abstract: An optical system is disclosed. The optical system includes collimating optics, including a polarization beam splitter, which includes one or more polarizations selection reflection surfaces configured to split image light into (s)-polarized light and (p)-polarized light. The collimating optics further include a first mirror configured to receive and reflect (p)-polarized light emitted from the one or more polarization selective reflection surfaces, a second mirror configured to receive and reflect (s)-polarized light emitted from the one or more polarization selective reflection surface, and a corrector lens configured to receive (p)-polarized light reflected from the first mirror and receive (s)-polarized light reflected from the second mirror, wherein a light path of the (s)-polarized light and a light path of the (p)-polarized light are substantially equal, wherein the (p)-polarized light and the (s)-polarized light are configured to combine to form a user image.

Abstract: A method is disclosed. The method may include receiving chart data; converting the received chart data into one or more sets of hardware directives and one or more subroutines, the one or more sets of one or more hardware directives including at least a first set hardware directives and a second set of hardware directives, the first set of hardware directives including one or more relative offsets needing address modification, the second set of hardware directives not needing address modification; generating a display list including the set of hardware directives and one or more rules, the one or more relative offsets needing address modification arranged at a beginning position in the generated display list; providing the generated display list to an on-board aircraft controller; and updating, via the on-board aircraft controller, the one or more absolute addresses of the relative offsets of the first set of hardware directives during run-time.

Abstract: An article of manufacture may include a tangible, non-transitory computer-readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising: receiving, via the processor, an ejection command for ejecting an ejection seat from an aircraft; determining, via the processor, an aircraft or ejection seat altitude and an aircraft or ejection seat speed; and commanding, via the processor, a simultaneous or staged deployment of a drogue parachute and a main parachute upon or just prior to separation of the ejection seat from the aircraft, the simultaneous or staged deployment being described herein.

Abstract: A system may include a display and a processor. The processor may be configured to: obtain aircraft data associated with an aircraft; obtain or generate storm top data, the storm top data including information associated with storm top altitudes and storm top locations; generate aircraft relative storm top data; generate an aircraft relative storm top image based at least on the aircraft relative storm top data, wherein the aircraft relative storm top image depicts a view of weather in front of the aircraft, wherein the aircraft relative storm top image conveys information associated with a difference between at least some of the storm top altitudes and an altitude of the aircraft; and output the aircraft relative storm top image as graphical data.

Abstract: A rehosted flight operation system is disclosed. The system comprises one or more controllers configured to execute program instructions. The program instructions include a rehosted flight operation module configured to generate one or more emulated flight operation subsystems, and a host flight operation module configured to generate flight operation data and flight operation commands.

Abstract: A system and method for a multi-beam multi-function active electronically scanned array (AESA) radar operation receives radar commands from individual aircraft systems and segments a single AESA fixed panel into a plurality of subarrays to carry out each individual function commanded by the individual aircraft system. Dependent on aircraft status and phase of flight, the subarrays are sized based on desired radar function at the specific phase of flight and specific threat associated with the phase. The system dynamically shifts the subarray size, beam characteristics, power settings, and function to enable multiple function of a cost effective single AESA panel.