Abstract:
The invention relates to a microscale radio-controlled aerial vehicle, having a fixed wing (as opposed to a rotary wing) comprising propulsion means (23, 24), said vehicle comprising a means for traveling on the ground, which are attached to the side ends of a section (18) of the wing, the rotational axis Y1 of the wheels (25) being located in front of the center of gravity (31) of the micro-drone (40), the center of gravity (31) of the micro-drone (40) being located in front of the aerodynamic center (32) of the micro-drone, the rotational axis Y1 of the wheels (18) being aligned with the thrust axis of the propulsion means (23, 24), and the traveling means (25) including wheels (25) sized such that the radius D/2 thereof is greater than the distance between the rotational axis Y1 of the wheels and the trailing edge of the wing.
Abstract:
An unmanned air system with blown flaps is disclosed. The unmanned air system is powered at least in part by a fuel cell (320). The fuel cell receives hydrogen from an on board tank (305) and oxygen form the air. An air intake (310) is arranged to guide air from outside the unmanned air system to the fuel cell for ventilating and cooling the fuel cell. The air having passed by the fuel cell is heated. A routing channel (340) is arranged to supply the heated air from the fuel cell to one or more flaps, slats or other high lift devices located on a lift device of the unmanned air system. The heated air is blown across the one or more flaps, slats or other high lift devices to provide lift. The unmanned air system with fuel cell blown flaps makes use of the heated air in increasing lift and reducing drag.
Abstract:
The present invention relates to an aircraft (110) for vertical take-off and landing. The aircraft comprises a first wing (101), a second wing (102) and a fuselage (103). The first wing (101) comprises a first longitudinal wing axis (104) and the second wing (102) comprises a second longitudinal wing axis (104). The first wing (101) extends along the first longitudinal wing axis (104) and the second wing (102) extends along the second longitudinal wing axis (104) from the fuselage (103). The first wing (101) is tiltable with a first rotational direction around the first longitudinal wing axis (104) and the second wing (102) is tiltable with a second rotational direction around the second longitudinal wing axis (104). The wings (101, 102) are adapted in such a way that, in a fixed- wing flight mode, the wings (101, 102) do not rotate around a second axis (105). The wings (101, 102) are further adapted in such a way that, in a hover flight mode, the wings (101, 102) are tilted around the longitudinal wing axis (104) with respect to its orientation in the fixed- wing flight mode and that the wing (100) rotates around the second axis (105).
Abstract:
An unmanned helicopter 20 includes altitude control device for giving a command of a collective pitch blade angle based on an altitude change rate command, etc., and performing altitude control of an airframe. The unmanned helicopter further includes descending device for causing the airframe to descend to a second altitude while changing descent rate command of the altitude control device and giving a descent rate command smaller than the descent rate command to the second altitude to the altitude control device for causing the airframe to descend from the second altitude to the ground.
Abstract:
An air-launched aircraft (10) includes deployable wings (16, 18), elevons (20, 22), and vertical fins (26, 28) that deploy from a fuselage (12) during flight. The aircraft may include a control system for operating the elevons, a communication system, and batteries for powering the systems. In addition, the aircraft may include a payload module (14) that mates with an interface in the fuselage. The payload module may include any of a variety of payloads, including cameras, sensors, and/or radar emitters. The aircraft may be powered or unpowered, and may be very small, for example, less than on the order of 10 kg (22 pounds). The deployable surfaces of the aircraft may be configured to deploy in a pre-determined order, allowing the aircraft automatically to enter controlled flight after being launched in a tumbling mode.
Abstract:
A method for landing a fixed wing aircraft is provided in which an inversion maneuver is performed so that the aircraft's back is facing the ground, and the aircraft's underside is facing away from the ground. After initiation or completion of this maneuver, deep stall is induced, and the aircraft descends almost vertically to land on its upper side, thus minimizing impact loads or damage on its underside. In a particular aerodynamic arrangement configured for carrying out the method, a flap (24), which may be stowed during normal flight, is deployed in a manner such as to aerodynamically induce a negative pitching moment on the aircraft and deep stall.
Abstract:
Systems and/or methods for forming a multiple-articulated flying system (skybase) having a high aspect ratio wing platform, operable to loiter over an area of interest at a high altitude are provided. In certain exemplary embodiments, autonomous modular flyers join together in a wingtip-to-wingtip manner. Such modular flyers may derive their power from insolation. The autonomous flyers may include sensors which operate individually, or collectively after a skybase is formed. The skybase preferably may be aggregated, disaggregated, and/or re-aggregated as called for by the prevailing conditions. Thus, it may be possible to provide a “forever-on-station” aircraft.
Abstract:
Munition ou composant de munition comprenant une charge utile associée à une structure 12 d'emport de la charge utile, une partie au moins de la structure 12 étant réalisée en un matériau énergétique comprenant au moins un composant énergétique mélangé à au moins un premier matériau de renfort structural. La munition constitue un engin volant 1 tel un drône, la structure 12 en matériau énergétique formant le corps 2 et/ou les ailes 3 du drône et comportant au moins un logement recevant une motorisation 8 ainsi que le ou les dispositifs d'amorçage 14, 15 et le moyen de commande 16.