Abstract:
An extruded structural member having improved damage tolerance. The structural member comprising: a base section; a rib stiffening section having at least one pair of structural ribs, the structural ribs integral with the base section and projecting outwardly thereof; and at least one intra-rib area positioned between the pair of structural ribs, the intra-rib area having a microstructure with intentionally increased amounts of fiber texture to reduce the rate of fatigue crack growth in the extruded structural member.
Abstract:
A personal aircraft device (nullPADnull) and a powered personal aircraft device (nullPPADnull) configured to be ridden and/or releasably connected to a person or user. The personal aircraft device can be configured to provide a large array of maneuvers during sky diving or free fall, and perform somewhat as a lifting device requiring a parachute landing and/or alternatively can be configured to glide to a safe landing. The personal aircraft device and powered personal aircraft device according to the present invention provide for high performance, speed and/or maneuvering of a person or user during free fall, and can provide increased or significantly increased gliding capability versus free falling or deployment of a high performance parachute.
Abstract:
A blended wing body aircraft having a modular body having a body that includes a plurality of laterally-extending body structures. Changes to the cargo capacity of the aircraft is accomplished through the employment of body structures that are wider or narrower. Configuration in this manner provides the aircraft with a structure that is relatively strong and efficient. While the body structures of this embodiment are not shared across a family of variously sized aircraft, the base design of the body structures is readily modifiable to adjust for an increase or decrease in width associated with a desired change to the aircraft's cargo capacity.
Abstract:
Integrally stiffened and formed, load carrying structures comprising a plurality of elongated thin-walled tubes placed co-extensively in a complementary side-by-side fashion which together form a hollow structure having a desired external contour. Integral skins forming the external and internal surfaces of the structure cooperatively therewith. The structure can be formed with an underlying internal support member spanning the interior of the load carrying structure, thereby connecting opposite sides of the structure together. Also, each of the tubes are wound with fibers in controlled orientations generally paralleling the direction of the loads applied to the tubes to optimize the strength to weight ratio of the tubes.
Abstract:
The Shock Wave Absorber is an inverted, rotated sinusoidal form inserted in the foremost tip of a vessel traveling in a fluid, with an opening to the nose, which provides orientation for turbulent air, water, etc . . .
Abstract:
A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn, pitch and yaw. The wing is configured to deform under flight loads to position the propellers such that the control can be achieved. Each of five segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other segments, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface.
Abstract:
A system for monitoring an aircraft receives navigation signals and deriving a position vector therefrom and also asserts an alert signal in the event that the altitude of the aircraft above ground level is less than a predetermined value. The system samples the position vector at a selected sample rate and outputs a succession of samples of the position vector, the sample rate depending on whether the alert signal has been asserted. Data packets that contain respective samples of the position vector are transmitted to a ground-based receiving station. The ground-based receiving station may calculate secondary data.
Abstract:
Process and device for determining in real time the behavior of a craft, in particular of an aircraft. Said device (1) comprises first means (2) for determining, from a current linear model modeling the behavior of the craft, a vector null illustrating an equilibrium state, second means (3) connected to said first means (2), for determining, from this vector null, the values at equilibrium of parameters of said linear model, third means (5) connected to said second means (3), for calculating, from at least some of these values, the dynamic component of the behavior of the craft, and fourth means (7) connected to said first and third means (2, 5), for introducing this dynamic component into said linear model so as to obtain a new current linear model and to deduce the behavior of said craft therefrom.
Abstract:
A differential pressure sensing release system and apparatus specifically adapted for use with an aircraft or spacecraft compartment panel. The apparatus utilizes a mechanism activated by a pressure differential acting on a diaphragm(s) to trigger a single latch bolt or series of latch bolts or other retention mechanisms, thereby releasing the panel. The apparatus thus provides a means of equalizing the pressure differential between adjacent compartments, eliminating potential damage due to forces created by the pressure differential.
Abstract:
Flight information is displayed using visual indications that resemble real world visual cues. For example, left and right side attitude displays extend vertically along each side of the windshield and a yaw display extends along a lower edge of the windshield. The attitude displays employ reference indications and outermost indications which track the position of the actual horizon. The yaw display employs outermost indications spaced from a reference indication a distance proportional to the rate of turn. Indexing of indications between the references and the outermost indications provides the appearance of movement representing climb, descent and turns. The rate and direction of indexing may be proportional to the rate and direction of change. Alternatively, indications such as lines are presented on a display screen, the lines being vertically displaced from a reference to represent angle of attack, slanted or angled to indicate the degree and direction of bank, and indexed to create the appearance of movement representing climb, descent and turns.