Abstract: Systems, methods, and devices include an aerial vehicle (AV) with a plurality of coaxially aligned vertical ducts. The lower vertical duct has a larger diameter than the upper vertical duct. Furthermore, the upper vertical duct at least partially contains a first propulsion component and the lower vertical duct at least partially contains a second propulsion component. The lower vertical duct can be coupled to the upper vertical duct by duct couplers which forms an air intake gap between the upper vertical duct and the lower vertical duct. The AV also includes one or more steering flaps disposed on the lower vertical duct, configured to manipulate an air flow out the bottom of the lower duct, thus controlling navigation and stability of the AV.

Abstract: A lightweight, pocket-sized unmanned aerial vehicle (UAV) that can be held in an outstretched hand by a user for take-off and landing of the UAV. The UAV comprises a semi-toroidal or a substantially toroidal hollow body that defines a duct. The UAV further comprises a motor for rotating a fan that directs air into and out of the duct enabling UAV to take flight. The UAV comprises a flight-control system that comprises at least two flight control surfaces that can alter the directed air as it flows through the duct for controlling the roll and pitch and optionally the yaw of the UAV during flight. The flight control system may be controlled by a microprocessor controller. The UAV further comprises a payload, with at least a wireless transmitter and receiver unit.

Abstract: Systems, methods, and device include a vehicle for providing horizontal directional control in a first transportation mode and a second transportation mode. The vehicle is an unmanned aerial vehicle with the duct defining a ducted air pathway with a central axis. One or more propellor(s) are arranged to move air through the ducted air pathway. One or more flap(s) are movable between multiple positions that vary a distance between ends of the flap(s) and the central axis. The first transportation mode includes three-dimensional control by the propellor(s) and flap(s), and the second transportation mode includes two-dimensional control with the control by the propellor(s) and flap(s). The three-dimensional control includes a first flap position that corresponds to a forward direction and the two-dimensional control includes a second flap position that corresponds to the forward direction, the second flap position being an opposite position relative to the first flap position.

Abstract: A lightweight, pocket-sized unmanned aerial vehicle (UAV) that can be held in an outstretched hand by a user for take-off and landing of the UAV. The UAV comprises a semi-toroidal or a substantially toroidal hollow body that defines a duct. The UAV further comprises a motor for rotating a fan that directs air into and out of the duct enabling UAV to take flight. The UAV comprises a flight-control system that comprises at least two flight control surfaces that can alter the directed air as it flows through the duct for controlling the roll and pitch and optionally the yaw of the UAV during flight. The flight control system may be controlled by a microprocessor controller. The UAV further comprises a payload, with at least a wireless transmitter and receiver unit.

Abstract: A lightweight, pocket-sized unmanned aerial vehicle (UAV) that can be held in an outstretched hand by a user for take-off and landing of the UAV. The UAV comprises a semi-toroidal or a substantially toroidal hollow body that defines a duct. The UAV further comprises a motor for rotating a fan that directs air into and out of the duct enabling UAV to take flight. The UAV comprises a flight-control system that comprises at least two flight control surfaces that can alter the directed air as it flows through the duct for controlling the roll and pitch and optionally the yaw of the UAV during flight. The flight control system may be controlled by a microprocessor controller. The UAV further comprises a payload, with at least a wireless transmitter and receiver unit.

Abstract: A lightweight, pocket-sized unmanned aerial vehicle (UAV) that can be held in an outstretched hand by a user for take-off and landing of the UAV. The UAV comprises a semi-toroidal or a substantially toroidal hollow body that defines a duct. The UAV further comprises a motor for rotating a fan that directs air into and out of the duct enabling the UAV to take flight. The UAV comprises a flight-control system that comprises at least two flight control surfaces that can alter the directed air as it flows through the duct for controlling the roll and pitch and optionally the yaw of the UAV during flight. The flight control system may be controlled by a microprocessor controller. The UAV further comprises a payload, with at least a wireless transmitter and receiver unit.

Abstract: A lightweight, pocket-sized unmanned aerial vehicle (UAV) that can be held in an outstretched hand by a user for take-off and landing of the UAV. The UAV comprises a semi-toroidal or a substantially toroidal hollow body that defines a duct. The UAV further comprises a motor for rotating a fan that directs air into and out of the duct enabling the UAV to take flight. The UAV comprises a flight-control system that comprises at least two flight control surfaces that can alter the directed air as it flows through the duct for controlling the roll and pitch and optionally the yaw of the UAV during flight. The flight control system may be controlled by a microprocessor controller. The UAV further comprises a payload, with at least a wireless transmitter and receiver unit.