Abstract: Pylon mounting assemblies are provided for mounting an engine (e.g., a turbojet engine) to a wing of an aircraft. The pylon mounting assemblies include an upper pylon connection member, and a lower pylon connection box, wherein the upper pylon connection member and the lower pylon connection box respectively include multiple opposed pairs of connection lobes. At least one pair of the connection lobes includes a pin connection to restrict degrees of freedom thereat along an x-axis and a mutually perpendicular z-axis, while at least one other pair of connection lobes includes a connection rod to restrict degrees of freedom thereat along the z-axis.

Abstract: A system for warning a flight crew of potential runway overruns during landing comprises a computer processor implementing at least one neural network comprising plural inputs and at least one output. The inputs comprise at least one or more of the following: pressure altitude, air temperature, wind speed, weight, calibrated airspeed, autobrake setting, runway slope, and runway condition. The system uses the neural network to continually calculate at least the remaining distance on the runway and to generate an alert when the remaining distance is insufficient.

Abstract: Anti-paint cracking systems are provided as part of a painted aerospace component (e.g., a fuselage, an engine nacelle, a wing, an empennage, a fairing and the like) having a pair of adjacent structural panels defining therebetween a joint space having a lengthwise extent and a finished paint topcoat covering an exterior surface of the adjacent structural panels and the joint space therebetween. The anti-paint cracking system will thus be associated with the joint space along the lengthwise extent thereof and positioned below the finished paint topcoat. The anti-paint cracking system will include a joint sealant positioned in the joint space and an adhesive tape or a fibrous tape formed of a fiber composite material applied over the joint space and the joint sealant positioned therein.

Abstract: Methods are provided by which a treatment fluid (e.g., a liquid corrosion inhibitor) may be applied onto the interior surfaces of an aircraft fuselage. The methods include (a) deploying an automated guided vehicle (AGV) comprising a carriage assembly and a robotic spray system carried by the carriage assembly within the interior of the fuselage, (b) closing the cabin door opening of the fuselage with the AGV positioned therewithin, and (c) operating the AGV so as to move within the fuselage along a longitudinal axis thereof to spray the treatment fluid onto the surfaces thereof.

Abstract: An aircraft includes a safe takeoff system that automatically and autonomously rejects a takeoff if actual measured acceleration deviates from calculations based on pre-flight parameters and the speed of the aircraft traveling down the runway is within a safe speed range to guarantee a successful low inertia rejected takeoff.

Abstract: An environmental control system for an aircraft uses engine bleed air for cabin environment control. The environment control system regulates the inlet airflow by assessing a plurality of parameters that provides, but not limited to, the aircraft operating conditions and external environment data, aiming at substantially reducing the extracted engine bleed air demand for cabin environment control and fuel consumption reduction and concurrently complying with aircraft pressurization, ventilation and thermal load requirements. The environmental control system airflow target is calculated based on the actual aircraft operating conditions, external environment data and a multi-dimensional airflow schedule map.

Abstract: Passive on-board aircraft cooling systems are provided with an evaporator/receiver in heat-exchange relationship with at least one heat source on board the aircraft, the evaporator/receiver containing a liquid phase working fluid which changes state to a vapor phase working fluid in response to heat transfer therefrom from the at least one heat source. First and second condensers are fluid-connected to the evaporator/receiver for receiving vapor phase working fluid from the evaporator/receiver. At least a portion of the vapor phase working fluid transferred to the first and second condensers is condensed by heat transfer between the first and second condensers and aircraft-external unpressurized and aircraft-internal pressurized air supply streams, respectively, to thereby form liquid phase working fluid which returns to the evaporator/receiver by virtue of the fluid connection with the first and second condensers.

Abstract: This non-limiting technology proposes to modify the maximum angle of attack setting (?setting) of the Stall Protection or Stall Warning Systems continuously or continually, according to the elapsed time since icing is first detected and/or the deicing system was activated. A changing maximum angle of attack setting maintains approximately the same angle-of-attack margin to the stall angle-of-attack by taking into account improvements in the stall angle of attack due to inflight icing removal and icing prevention by operation of an inflight deicing system. The aircraft flying with an angle of attack closer to the critical angle of attack is capable of producing a higher coefficient of lift.

Abstract: Every junction part for an airplane wing is manufactured with overmaterial. Each part is measured with a laser based interferometer or other scanning technique and the “as built” measurements are compared with a model to generate a new trajectory milling program to fill or prevent gaps between parts using a points cloud and B-Spline algorithm to generate a new surface to be milled. Once the program is generated (new trajectories) and post processed, it is sent to a milling machine to perform overmaterial milling on already milled parts with overmaterial. This technique can be used to eliminate gaps between junction parts and the corresponding need for shims.

Abstract: A safe takeoff monitoring system checks the actual physical parameters of an airplane during takeoff, determines the actual takeoff weight, and warns the pilot to interrupt the takeoff if any dangerous situation is developing, before a high energy abort is necessary.

Abstract: It is described a movable pylon, associated with a lower portion of aircraft wing and with an aircraft engine to change the height of this engine between a flying position and a ground position, the movable pylon comprising: a main unique structure formed by a first movable structure pivoted to a second fixed structure, the first movable structure associated with the engine, the second fixed structure associated with the wing, and a pivot mechanism connecting the first movable structure to at least one point on the wing.

Abstract: An aircraft automatic control system protects structural parameters of an aircraft based on angle of attack protection by use of maximum allowed angle of attack values as a function of dynamic pressure or a combination of parameters that permit computation of dynamic pressure. Example techniques herein limit the wing lift coefficient as a function of dynamic pressure (or velocity) to create a limitation for the maximum lift produced by an aircraft wing.

Abstract: A flexible flight control system enables conversion from one architecture using one type of inceptor to another architecture using another type of inceptor, through the usage of modular software and hardware pieces with common interfaces among the different types of inceptors. Longitudinal and lateral directional control laws are adapted to be compatible with the specific aspects of the operation of each configuration/architecture, giving the option to the aircraft operator to choose any one of a number of inceptor architectures at time of manufacture.

Abstract: Reinforced wing spars for underwing mounted retractable landing gear assemblies include a unitary (one-piece) metal wing spar having a central web and an upper spar flange, a trunnion mounted in the web of the wing spar for pivotally receiving a transverse mounting tube of a retractable landing gear strut, and a reinforcement laminate adhered to and extending along the upper spar flange above the trunnion, wherein the reinforcement laminate is comprised of at least one fiber reinforced composite layer alternately interposed with at least one metal reinforcement layer.

Abstract: An aircraft compensates for asymmetry of engine failure by drawing part of the energy produced by the still-operating engine to generate thrust at the tip of the opposite wing. For example, the left engine drives its own thrust on the left wing, but a portion of the energy the left engine produces is delivered at a propeller at the tip of right wing. Similarly, the right engine drives its own thrust on the right wing, but a portion of the energy the right engine produces is delivered at a propeller at the tip of the left wing. In this way, every pair of engines and opposite tip thrust generators are intrinsically balanced. In the event of one engine failure, no yaw moment will be noticed.

Abstract: An inspection system for assessing and visualizing structural damage to a structural platform comprises sensors operatively coupled to the structural platform that assess structural damage to or failure of the structural platform. A structural health monitoring processor operatively coupled to the sensors determines structural damage in response to the sensors. At least one RF transponder and associated reader determines the position of the structural platform relative to a user augmented reality viewing device. The user augmented reality viewing device includes a camera that captures images of the structural platform. The user augmented reality viewing device displays real world images of the structural platform and virtual indications of determined structural damage that are dependent on the position and orientation of the user augmented reality viewing device relative to the structural platform.

Abstract: Devices and methods are provided whereby a preformed elastomeric tubular seal profile may be installed into a gap defined between an adjacent pair of structural panels. The device may include a frame and opposed first and second compression rollers attached to the frame for rotational movement about respective rotational axes. The opposed first and second compression rollers define a nip space therebetween for the introduction of a preformed elastomeric tubular seal profile, whereby moving the tubular seal profile through the nip space causes the tubular seal profile to compress and thereby form a downstream compressed profile portion and an upstream uncompressed profile portion. The compressed profile portion may thus be inserted into a gap between adjacent structural panels and thereafter allowed to expand (e.g., by removal of a plug element from a distal end thereof) to thereby seal the gap.

Abstract: High precision radar to track aerial targets installed on the ground, in a container or in a vehicle, to determine the target parameters, such as azimuth angle (?a), elevation angle (?e), range, speed and flying direction and transmits them to a weapon system which comprises an array of two collinear antennas (19, 21) with narrow beam in elevation, installed on a platform (12) and rotating around a vertical axis at a rotational speed of, at least, 50 rpm, in which the direction of the said array varies between 0° and 90° by means of a positioning motor in elevation (18), and the precise target elevation angle (?e) is determined by interferometry. The precise target azimuth angle (9a) is determined through correlation between a signal detected by the said antennas (19, 21) with a +1/?1 step function, complemented by the search for the zero transition provided by the determination of the return pulse maximum.

Abstract: Side-facing belted aircraft seats include a tactile signaling unit to induce movement of the seat occupant. For such purpose, the signaling unit may be provided with a signaling lid covering a female buckle of a lap belt restraint assembly. The signaling lid is moveable between a closed position wherein engagement of a male tab of the lap belt with the female buckle is precluded and an open position wherein engagement of the male tab with the female buckle is allowed. The signaling lid thereby provides tactile stimulation when in the open position thereof to induce the seated occupant to shift on the cushioned seat so that a midsaggital plane of the occupant is aligned with an offset plane of the seat that is offset by a predetermined distance toward one side of the seat relative to a midplane of the seat.