Abstract:
Disclosed herein is a propulsion system (300), which may be implemented in an air-vehicle (100), such as a ducted-fan organic air-vehicle. The propulsion system (300) comprises (a) a power source, (b) a fan located within a duct and powered by the power source, (c) a plurality of vanes (302) arranged in an x-clocked configuration and configured to produce control moments from the flow generated by the fan. The maximum control moments, which can be created by the vanes (302) in the x-clocked configuration, are substantially oriented along the flight axes of the air-vehicle (100) or the principle axis of the maximum moment of inertia.
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:
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 aircraft 1, 101 capable of thrust-borne flight can be automatically retrieved, serviced, and launched using equipment suitable for a small vessel. For retrieval, the aircraft hovers over a base apparatus 6 having one or more rails 5, 105 which bound a space into which the aircraft can safely descend. When the aircraft's measured position and velocity are appropriate, the aircraft descends promptly such that a spanwise component 4, 104 on the aircraft engages the rails. The teeth 8, 108 restrain the aircraft in position and orientation, while the rails bring the aircraft to rest. Articulation of the rails is used to park the aircraft in a servicing station 14. Connections for refueling, recharging, and/or functional checks are made in preparation for launch. Launch is effected by removing connections and restraints and articulating the rails to put the aircraft in an appropriate position and orientation. The aircraft uses its own thrust to climb out of the apparatus into free flight.
Abstract:
Les moteurs respectifs du drone (10) sont commandables de manière différenciée pour piloter le drone en attitude et en vitesse. Un appareil de télécommande produit une commande de virage selon une trajectoire curviligne, cette commande comprenant un paramètre de sens du virage, à droite ou à gauche, et un paramètre définissant le rayon de courbure ce virage. Le drone reçoit cette commande et acquiert des mesures instantanées des composantes de la vitesse linéaire, des angles d'inclinaison et des vitesses angulaires du drone. A partir de la commande reçue et des mesures acquises sont générées des valeurs de consigne d'une boucle de contrôle des moteurs du drone, ces valeurs de consigne contrôlant la vitesse linéaire horizontale et l'inclinaison du drone par rapport à un repère lié au sol de manière à faire parcourir au drone la trajectoire curviligne (C) avec une vitesse tangentielle ( u ) prédéterminée.
Abstract:
The invention concerns a vertical take-off and landing miniature drone, comprising a substantially cylindrical annular fairing (10), two counter-rotating propellers (26, 32) mounted rotatably in the fairing about the axis thereof and driven at the same speed, and control surfaces, located between the cylindrical body and the fairing beneath the propellers, which comprise pivoting boxes (34) open at their upper and lower ends and containing profiled blades.
Abstract:
A ducted fan air vehicle and method of operation is disclosed for obtaining aerodynamic lift and efficiency in forward fliglit operation without significantly impacting hover stability. One or more retractable wings (301) are included on the ducted fan air vehicle and are deployed during forward flight to provide aerodynamic lift. The wing or wings are retracted when the vehicle hovers to reduce the impact the wings have on stability in a wind. Each wing may conform to the curvature or profile of the vehicle when retracted, and may be constructed in one or more wing sections. The wing or wings may be deployed and retracted automatically or at the command of an operator. Each wing and related components may be integrated into the vehicle or may be detachable.
Abstract:
Methods and apparatus for a transforming aerial vehicle according to various aspects of the present invention may operate in conjunction with a launch system configured to rotate the aerial vehicle about its longitudinal axis. A lifting surface pivotally connected to the aerial vehicle may be positioned such that the rotation of the aerial vehicle causes the lifting surface to generate a lifting force on the aerial vehicle. This lift causes the aerial vehicle to rise gyroscopically before the lifting surface is rotated to a second position such that the aerial vehicle transforms from a gyroscopic mode to a fixed-wing aerial vehicle. The lifting surface may then be rotated again to allow the aerial vehicle to land as an auto gyro.
Abstract:
Disclosed herein is a propulsion system (300), which may be implemented in an air-vehicle (100), such as a ducted-fan organic air-vehicle. The propulsion system (300) comprises (a) a power source, (b) a fan located within a duct and powered by the power source, (c) a plurality of vanes (302) arranged in an x-clocked configuration and configured to produce control moments from the flow generated by the fan. The maximum control moments, which can be created by the vanes (302) in the x-clocked configuration, are substantially oriented along the flight axes of the air-vehicle (100) or the principle axis of the maximum moment of inertia.
Abstract:
A pod (240) for an unmanned aerial vehicle is provided that may be removed and reattached to the vehicle. The pod comprises an outer shell, within which a variety of payloads may be carried. A first surface on the vehicle frame comprises a plurality of connects or electrical traces. The plurality of attachments are used to removably attach the pods to the first surface. Thus, a wide variety of payloads may be delivered using the same unmanned aerial vehicle, simply by removing and attaching different pods to a fixed vehicle core. These pods may be shaped so as to form part of the vehicle exterior, and when the pods are attached to the frame, they enhance the aerodynamics of the vehicle.