Abstract:
An unmanned aerial vehicle (UAV) for making partial deliveries of cargo provisions includes a UAV having one or more ducted fans and a structural interconnect connecting the one or more fans to a cargo pod. The cargo pod has an outer aerodynamic shell and one or more internal drive systems for modifying a relative position of one or more cargo provisions contained within the cargo pod. Control logic is configured to, after delivery of a partial portion of the cargo provisions contained within the cargo pod, vary a position of at least a portion of the remaining cargo provisions to maintain a substantially same center of gravity of the UAV relative to a center of gravity prior to delivery of the partial portion. Other center of gravity compensation mechanisms may also be controlled by the control logic to aid in maintaining the center of gravity of the UAV.
Abstract:
An unmanned aerial vehicle selectively formed of high strength composite structural part portions and lightweight aerodynamic foam portions to provide a low-cost and lightweight UAV that comports with export, civil airspace, and safety regulations. To further to reduce an overall weight of the UAV, mechanical elements are designed to provide multiple functionalities. Structural elements may be manufactured in same or similar non-specialized processes, and non-structural elements manufactured in same or similar non-specialized processes, reducing overall manufacturing costs. Materials and bonding elements are selected to provide frangibility and yet maintain normal flight structural integrity.
Abstract:
Self-leveling legs are used to accommodate landing a ducted fan hovercraft on a sloped surface such as a roof-top. These legs move to accommodate a variation of slope within their range of motion irrespective to the azimuth of the vehicle body. The configuration and operation of the landing legs allow the hovercraft to land in a stable fashion with the hovercraft vehicle body maintained in a vertical orientation. The basic kinematics of the present invention is the displacement of one landing leg upwards is connected by a horizontal member to the opposite leg and displaces it downwards, and visa-versa. Planar surface contact is accomplished by the unique curvature of the legs and the splay of the legs from the vehicle body.
Abstract:
A system consisting of a collection of aircraft equipped with specific chemical, radiological or particulate sensors as well as a data link radio and navigation sub system flying their normal routes. The position, sensor output and air data is periodically communicated to the ground via a data link radio and collected. The data is used to make maps or models of the spatial distribution of the sensed quantity for a particular time period. Dynamic behavior can be discerned by considering time consecutive models. Predictions can be made using this data alone, or in conjunction with other data, and can be refined by comparisons between the prediction and subsequent spatial distribution maps.
Abstract:
Systems, devices, and methods are described that facilitate the transmission of image data collected by a sensor within a gimbal assembly. A gimbal assembly includes one or more sensors positioned within the gimbal assembly. The one or more sensors collect data. The gimbal assembly is controllable to aim the one or more sensors. The gimbal assembly further includes a communications module within the gimbal assembly. The communications module transmits at least one directional optical signal to communicate data collected by the sensor. At least one transducer is positioned to receive the at least one directional electromagnetic signal.
Abstract:
Flight plans for an unmanned aerial vehicle (UAV) are automatically generated and filed with an air traffic control (ATC) system to quickly and easily secure approval for flying the UAV in a controlled airspace. In one example, one or more flight locations for a UAV are defined using a computing device. Using the computing device, an electronic flight plan is automatically generated based on the defined flight locations for the UAV. The flight plan can be transmitted to an ATC system. ATC approval, with or without modifications, or denial of the flight plan may also be received electronically and indicated on the operator device.
Abstract:
A morphing duct of a ducted fan for a vertical take-off and landing (VTOL) vehicle is configured to change shape as function of the flight mode of the vehicle to improve the thrust per unit energy input for the ducted fan. Additionally, the morphing duct may be configured to change shape to change the flight path of the VTOL vehicle.
Abstract:
A dual ducted fan arrangement in which the duct components, engine, and avionics/payload pods are capable of being quickly disassembled to fit within common backpacking systems.. Each duct is identical in fan, stator, and control vane design. Assembly connections between ducted fans and electronic modules are also identical. An engine or APU drives the dual ducted fans through a splined shaft to a differential or through electric motors. Energy is transferred to the ducted fans by a single gear mounted to the stator hub. Relative speeds of the individual ducted fans are controlled through separate frictional or generator load control braking mechanisms on each of the splined shafts between the differential and ducted fans. In the electric motor case relative speed is through electronic speed control. The fans are counter rotating for torque balancing. The electronic module locations are vertically variable for longitudinal center of gravity for variations in payloads.
Abstract:
An unmanned aerial vehicle selectively formed of high strength composite structural part portions and lightweight aerodynamic foam portions to provide a low-cost and lightweight UAV that comports with export, civil airspace, and safety regulations. To further to reduce an overall weight of the UAV, mechanical elements are designed to provide multiple functionalities. Structural elements may be manufactured in same or similar non-specialized processes, and non-structural elements manufactured in same or similar non-specialized processes, reducing overall manufacturing costs. Materials and bonding elements are selected to provide frangibility and yet maintain normal flight structural integrity.
Abstract:
Systems, devices, and methods are described that facilitate the transmission of image data collected by a sensor within a gimbal assembly. A gimbal assembly includes one or more sensors positioned within the gimbal assembly. The one or more sensors collect data. The gimbal assembly is controllable to aim the one or more sensors. The gimbal assembly further includes a communications module within the gimbal assembly. The communications module transmits at least one directional optical signal to communicate data collected by the sensor. At least one transducer is positioned to receive the at least one directional electromagnetic signal.