A quick release device 100 for releasably coupling a pair of landing gears in a UAV includes a housing 400 having two slots 102 for receiving landing gears to be locked and released, and two snap levers 200 pivotally mounted in the housing 400 for movement between a lock position and a release position. The snap levers 200 include a locking feature 104 to engage with a corresponding feature on the landing gears to lock them with the housing 400. Snap levers 200 are located such that the two snap levers can be moved together by a single thumb or finger to the released positions. A sheet shaped planar biasing device 300 for biasing snap levers 200 towards the locked position is provided, which includes two generally U-shaped cut-outs defining cantilever springs in contact with the snap levers 200.

Passenger drone for transporting winter sports enthusiasts with strapped-on winter sports equipment, with a cargo drone, wherein a hanger can be fastened to the cargo drone, preferably in a releasable manner, wherein at least one chair, preferably at least one chairlift chair for at least one winter sports enthusiast can be fastened, in particular directly, to the hanger.

Passenger drone for transporting winter sports enthusiasts with strapped-on winter sports equipment, with a cargo drone, wherein a hanger can be fastened to the cargo drone, preferably in a releasable manner, wherein at least one chair, preferably at least one chairlift chair for at least one winter sports enthusiast can be fastened, in particular directly, to the hanger.

Provided are an in-situ detection device and method for carbon emissions from farmland. The in-situ detection device includes an unmanned aerial vehicle, and landing gear. A retraction and release mechanism is arranged between the unmanned aerial vehicle and the landing gear, and the retraction and release mechanism is configured for retracting or lowering the landing gear. An enrichment hood is installed on the landing gear through a folding mechanism, and the folding mechanism can drive the enrichment hood to be unfolded or folded on the landing gear. When the unmanned aerial vehicle lowers the landing gear to a farmland gas collection point through the retraction and release mechanism, the enrichment hood is unfolded to enrich a gas at the farmland gas collection point. The landing gear is also provided with a greenhouse gas detection mechanism for detecting the gas enriched in the enrichment hood.

Provided are an in-situ detection device and method for carbon emissions from farmland. The in-situ detection device includes an unmanned aerial vehicle, and landing gear. A retraction and release mechanism is arranged between the unmanned aerial vehicle and the landing gear, and the retraction and release mechanism is configured for retracting or lowering the landing gear. An enrichment hood is installed on the landing gear through a folding mechanism, and the folding mechanism can drive the enrichment hood to be unfolded or folded on the landing gear. When the unmanned aerial vehicle lowers the landing gear to a farmland gas collection point through the retraction and release mechanism, the enrichment hood is unfolded to enrich a gas at the farmland gas collection point. The landing gear is also provided with a greenhouse gas detection mechanism for detecting the gas enriched in the enrichment hood.

An aircraft, such as a rotary-wing aircraft, may be selectably fitted with power modules that may be installed in or removed from corresponding openings in the aircraft fuselage. The power modules may be interchangeable with other power modules, The power modules may utilize different technologies or thermodynamic cycles to generate power, including electrical batteries, fuel cells, a turbine powered generator, a reciprocating engine-powered generator, a turbine engine, a reciprocating engine, or other electrical or mechanical sources of power. The power modules may transfer electrical or mechanical power to the aircraft to maintain the aircraft in flight or to provide propulsion to the aircraft. An aircraft control system may detect the installed power modules and adjust inceptors and displays to correspond to the installed power modules.

An aircraft, such as a rotary-wing aircraft, may be selectably fitted with power modules that may be installed in or removed from corresponding openings in the aircraft fuselage. The power modules may be interchangeable with other power modules, The power modules may utilize different technologies or thermodynamic cycles to generate power, including electrical batteries, fuel cells, a turbine powered generator, a reciprocating engine-powered generator, a turbine engine, a reciprocating engine, or other electrical or mechanical sources of power. The power modules may transfer electrical or mechanical power to the aircraft to maintain the aircraft in flight or to provide propulsion to the aircraft. An aircraft control system may detect the installed power modules and adjust inceptors and displays to correspond to the installed power modules.

An unmanned aerial system includes an unmanned aerial vehicle having a body and a primary propulsion system coupled to the body. The primary propulsion system includes at least one propeller and at least one motor coupled to the at least one propeller. The unmanned aerial system also includes a pair of landing gears coupled to the body of the unmanned aerial vehicle. Each landing gear of the pair of landing gears includes a buoyant elongated float. The unmanned aerial system also includes a SONAR device coupled to the unmanned aerial vehicle.

An unmanned aerial system includes an unmanned aerial vehicle having a body and a primary propulsion system coupled to the body. The primary propulsion system includes at least one propeller and at least one motor coupled to the at least one propeller. The unmanned aerial system also includes a pair of landing gears coupled to the body of the unmanned aerial vehicle. Each landing gear of the pair of landing gears includes a buoyant elongated float. The unmanned aerial system also includes a SONAR device coupled to the unmanned aerial vehicle.

An attachable delivery device is configured to be carried by a delivery vehicle and to deploy a payload at a target. The attachable delivery device includes a base configured to house the payload. The attachable delivery device also includes at least one tape spring attached to the base. The at least one tape spring is configured to deploy from a first transport position to a second deployed position. The attachable delivery device also includes a buckle contact configured to attach to the base and to move relative to the base. The movement of the buckle contact relative to the base is configured to cause the at least one tape spring to deploy from the first transport position to the second deployed position.