摘要:
A pressure bulkhead for an aircraft comprising a fuselage. The pressure bulkhead comprises an inflatable element, suitable for being filled with air, which in turn comprises a cover which delimits an inner zone. The pressure bulkhead further comprises a seal suitable for providing an airtight seal between the cover and the fuselage of the aircraft.
摘要:
Methods and apparatus for an adaptable solar airframe are provided herein. In some embodiments, an adaptable solar airframe includes a solar PV system having at least one solar tracking system and being able to follow the sun position in order to increase sunlight collection and power output; and an expandable body having an aerodynamic cross-section that minimizes parasitic air drag at any given thickness of the body, further being at least partially transparent to sunlight, further enclosing the solar PV system, and further being able to change its shape in response to changes in the positions of the solar PV system.
摘要:
An emergency flotation device for crashed small airplanes which can be retrofited on most small airplanes as well as come preinstalled on new small airplanes, is self contained in a small container; has several independent triggering means; and has a visual as well as an RF beacon system integrated within to call for rescue.
摘要:
The object of the invention is to provide an aircraft which is capable of being enhanced in speed and preventing a crash even when a propeller does not operate to provide thrust to the aircraft. A wing which is an envelope made of a flexible material is comprised on an upper side of a aircraft body, and is filled with a gas with a specific gravity less than that of air. Moreover, the aircraft body is provided with a propeller.
摘要:
The cylindrical shape tube consists of a pressure valve and a safety valve. Whether the tube's contents be made of metal, expandable or non-stretchable materials, it has the ability to retain low air pressure. For safety purposes, any excess air pressure is released through the safety valve when the belts are made of metal content, the lengthwise belts have flares and grooves, the crosswise belts have oblong holes. When the belts are made of expandable or non-stretchable materials, snap head and grooves are cast within the lengthwise belts, the crosswise belts have round holes. The metal crosswise belts with their oblong holes can be engaged onto both the snap heads of the expandable lengthwise belts and flares of metal lengthwise belts. The expandable crosswise belts with their round holes can be snapped onto the snap heads of the expandable lengthwise belts and flares of the metal lengthwise belts. When a number of the completed air tubes protected by belts are interlocked, whether cross mannered or layered, it increases the potential of the lifting capacity for any load.
摘要:
This invention relates to a mechanism for automatically actuating a rescue device upon opening of a panel obturating an exit and bearing said rescue device, mechanism comprising a control bar connected to said rescue device and adapted, under the action of a voluntary actuating member, to be rendered fast either with said panel or with the periphery of said exit, with the result that opening of said panel does not bring about, or brings about, respectively, actuation of said rescue device via said control bar. According to the invention, this mechanism is characterized in that said control bar is fast in displacement with a mobile system controlled by said voluntary actuating member in order to subject said bar to a movement of translation parallel to itself, of direction at least substantially at right angles to said panel. The invention is more particularly applicable to the automatic control of escape slides, slide/rafts or the like in the event of an emergency.
摘要:
Improvements in heavier-than-air freight aircraft having forward thrust engines, wings, a rear fin and rudder, and a lighter-thanair gas lift mechanism for enhancing the aerodynamic lift provided by the forward thrust engines and wings, such improvement comprising respective forward and rear wings, three equally widthwise spaced apart gas compartments containing lighter-than-air gas disposed vertically above the forward wing, a freight compartment disposed vertically below the gas compartments, the forward and rear wings and the four compartments joined to each other to provide framing rigidity for the aircraft, the rear fin and rudder mounted upon the center one of the gas compartments so as to upstand vertically therefrom to obtain a clear aerodynamic cut into the air, a pilot compartment at the forward end of the center one of the gas compartments, each gas compartment of substantially uniform transverse crosssection, each compartment extending axially substantially full length of the aircraft, the rear wing being a substantially full width rear wing disposed vertically above the forward wing so as to have a substantially clear aerodynamic cut into the air, said forward wings comprising left and right forward partial-wing sections joined to the freight compartment.
摘要:
A helicopter, autogyro, windmill or other impeller, comprising blades, optionally resilient or substantially rigid, each having: a tip free of attachment to other blades and urged into extended position by centrifugal force; and blade-strengthening tubular members containing gaseous material, imbedded in foam plastic. Each tubular member may be: an elongated flat-ended tube or can; or a row of end-joined tubes or cans. The gaseous material may be: helium, air or other gas (preferably strongly pressurized); gas-cell-containing foam plastic; or other, gas-containing material. The preferably hinged form of the impeller comprises at least one aligned pair of blades (two pairs being shown), each pair comprising inflated tubes extending from one end of the blades to the other end, having walls of: thin ductile or resilient metal (preferably lead), optionally coated with rubberimpregnated fabric or with rubber or other resilient plastic; plastic-coated fabric; resilient plastic; glass; or the like. Each tube has flattened and sealed ends and a flattened middle portion clamped by a plate to the impeller shaft, providing flexible, integral hinges at this middle portion permitting tilting of the blades, balancing centrifugal and aerodynamic forces on each side of the rotary shaft. The flat-ended tubes are preferably flanked by blade-stiffening tubular members preferably rows of metal cans, end-joined by preferably resilient plastic. When the tubular members are of plastic or glass they optionally may be blow-molded or centrifugally molded.
摘要:
A strong, slightly heavier than air helicopter or like vehicle having: hinged, resilient lifting-propeller blades comprising gas-inflated tubes; a substantially rigid cabin comprising gascontaining tubes and a strong skin means; a landing cushion of easily deformable material which maintains its outer shape in flight; a steering propeller supported in a doughnut-shaped tube that is housed in a strong, streamlined skin; and balloon means at the top of the craft for lightening its weight and stabilizing it against pitching and rolling. The cabin''s main, load-carrying part is cylindrical, or optionally oblong or barrel-shaped; and optionally its tubular members are in stavelike elements having strong, planar sides that are epoxy-glued together.