A lightweight flying vehicle includes a carrier body, at least two fan-tube propulsion devices, two steering devices and a flight wing. The fan-tube propulsion devices are respectively disposed at two opposite sides of the carrier body and have a sufficient propulsion force. The steering device is disposed on a moving line of the airflow discharged from the fan-tube propulsion devices and is configured to change a direction of the airflow discharged from the air discharge opening, so that the lightweight flying vehicle is in a high-speed flight mode. The flight wing can provide a lift power in the high-speed flight mode.

A propeller-enclosed airlifting air tube apparatus contains a unique multi air-tube structure that functions as a plurality of air outtakes to produce stable lift force with one or more propellers enclosed in the apparatus. By encapsulating the propellers within the outer shells, the airlifting air tube apparatus is able to reduce potential bodily harm and property damage risks during a flight operation in a densely-populated environment or in another environment involving tight spaces. The airlifting air tube apparatus encapsulates one or more pairs of contra-rotating propellers inside a drone casing to enhance operational safety while minimizing the overall footprint of the apparatus. Furthermore, the airlifting air tube apparatus incorporates a novel airflow control dish-based flight control steering unit configured to change directions and altitudes of the apparatus by dynamically adjusting the airflow to each outtake air tube with the airflow control dish.

A propeller-enclosed airlifting air tube apparatus contains a unique multi air-tube structure that functions as a plurality of air outtakes to produce stable lift force with one or more propellers enclosed in the apparatus. By encapsulating the propellers within the outer shells, the airlifting air tube apparatus is able to reduce potential bodily harm and property damage risks during a flight operation in a densely-populated environment or in another environment involving tight spaces. The airlifting air tube apparatus encapsulates one or more pairs of contra-rotating propellers inside a drone casing to enhance operational safety while minimizing the overall footprint of the apparatus. Furthermore, the airlifting air tube apparatus incorporates a novel airflow control dish-based flight control steering unit configured to change directions and altitudes of the apparatus by dynamically adjusting the airflow to each outtake air tube with the airflow control dish.

A personal propulsion device, including a platform configured to support a passenger; a first thrust system coupled to the platform, wherein the first thrust system is configured to provide movement in a first direction; a second thrust system coupled to the platform, wherein the second thrust system is configured to provide movement in a second direction that is substantially perpendicular to the first direction; and a controller in wireless communication with the second thrust system, wherein the controller is configured to (i) measure an angle of tilt of the controller, and (ii) adjust an output of the second thrust system based at least in part on the measurement.

An aircraft is provided. The aircraft includes an engine compartment and an engine provided in the engine compartment. The aircraft further includes a ductwork housing positioned above the engine. The ductwork housing includes at least one duct. The at least one duct has an outlet port that faces downwardly. Operation of the engine causes air to flow through the duct and exit the outlet port. The outlet port is configured to direct the air flow downwardly to provide lift for the aircraft.

A personal propulsion device, including a platform configured to support a passenger; a sensor positionable within a mouth of the passenger and configured to measure at least one of a bite force or bite pressure thereon; a first thrust system coupled to the platform, wherein the first thrust system is configured to provide thrust in a first direction; and a controller in communication with the sensor and the first thrust system, wherein the controller is configured to (i) receive the measurement of the bite force or bite pressure, and (ii) adjust operation of the first thrust system based at least in part on the received measurement.

Various embodiments of a propeller-enclosed airlifting air tube apparatus are disclosed. The propeller-enclosed airlifting air tube apparatus contains a unique multi air-tube structure that functions as a plurality of air outtakes to produce stable lift force with one or more propellers enclosed in the apparatus. By encapsulating the propellers within the outer shells, the airlifting air tube apparatus is able to reduce potential bodily harm and property damage risks during a flight operation in a densely-populated environment or in another environment involving tight spaces. Preferably, the airlifting air tube apparatus encapsulates one or more pairs of contra-rotating propellers inside a drone casing to enhance operational safety while minimizing the overall footprint of the apparatus. Furthermore, the airlifting air tube apparatus incorporates a novel flight control steering unit configured to change directions and altitudes of the apparatus by dynamically adjusting airflow to each outtake air tube.

A propulsion system coupled to a vehicle. The system includes a diffusing structure and a conduit portion configured to introduce to the diffusing structure through a passage a primary fluid produced by the vehicle. The passage is defined by a wall, and the diffusing structure comprises a terminal end configured to provide egress from the system for the introduced primary fluid. A constricting element is disposed adjacent the wall. An actuating apparatus is coupled to the constricting element and is configured to urge the constricting element toward the wall, thereby reducing the cross-sectional area of the passage.

Various forms of a gyroscopically stabilised aerial vehicle are provided. The aerial vehicle comprises a jet turbine and or an electric motor coupled to a gyroscopic stabilisation assembly via a shaft assembly. In preferred embodiments the gyroscopic stabilisation assembly comprises a gyroscopic fan with alternating pivoting fan blades to provide controlled stable flight. The aerial vehicle is preferably configured for vertical take off and landing (VTOL) to enable it to be used in a wide variety of situations, including in relation to fighting fires with its exhaust gasses.

Various forms of a gyroscopically stabilised aerial vehicle are provided. The aerial vehicle comprises a jet turbine and or an electric motor coupled to a gyroscopic stabilisation assembly via a shaft assembly. In preferred embodiments the gyroscopic stabilisation assembly comprises a gyroscopic fan with alternating pivoting fan blades to provide controlled stable flight. The aerial vehicle is preferably configured for vertical take off and landing (VTOL) to enable it to be used in a wide variety of situations, including in relation to fighting fires with its exhaust gasses.