The ‘Air Wheel’ rotor is a variable pitch rotor with variable twist blades. The ‘Air Wheel’ rotor comprises a closed wing coupled to one or more coaxial hubs via torsional elastic blades, the blades are coupled to the closed wing in one of the following ways: rigid, elastic, or visco-elastic. There is provided a wide range of combinations of the wing relative width and coning angle typical for a lifting rotor with a thin planar wing attached to the tips of long blades, for a shrouded fan in a wide annular wing, or for an impeller in a rotating cylindrical wing. The ‘Air Wheel’ rotor combines and enhances the advantages of a rotor and a wing, it has excellent aerodynamic characteristics, and eliminates limitations of the rotor size and flight speed. The ‘Air Wheel’ rotor can be used for designing vertical take-off and landing aircraft. The “Air Wheel” rotor is universal and can function as a lifting rotor, or a wind turbine, or an aircraft propeller, or a marine propeller.

The ‘Air Wheel’ rotor is a variable pitch rotor with variable twist blades. The ‘Air Wheel’ rotor comprises a closed wing coupled to one or more coaxial hubs via torsional elastic blades, the blades are coupled to the closed wing in one of the following ways: rigid, elastic, or visco-elastic. There is provided a wide range of combinations of the wing relative width and coning angle typical for a lifting rotor with a thin planar wing attached to the tips of long blades, for a shrouded fan in a wide annular wing, or for an impeller in a rotating cylindrical wing. The ‘Air Wheel’ rotor combines and enhances the advantages of a rotor and a wing, it has excellent aerodynamic characteristics, and eliminates limitations of the rotor size and flight speed. The ‘Air Wheel’ rotor can be used for designing vertical take-off and landing aircraft. The “Air Wheel” rotor is universal and can function as a lifting rotor, or a wind turbine, or an aircraft propeller, or a marine propeller.

A VTOL fixed wing aircraft capable of high-speed forward flight. The aircraft has a main wing internally reinforced with front and aft spars. Spar boxed are located in roll-balanced locations along the wing. Each spar box serves as a connection point for a support linkage that supports a leading-edge and trailing-edge propulsion unit. The leading-edge propulsion unit is fitted with a puller propeller and designed for articulated movement between a VTOL position in front of the wing leading edge and a forward flight position below the wing leading edge. The trailing-edge propulsion unit is fitted with a pusher propeller and designed for articulated movement between a VTOL position in behind the wing trailing edge and a forward flight position above the wing leading edge. The propeller includes a propulsor thrust ring having an aerodynamic profile and a thrust nozzle to capture and vector radial air leakage into thrust.

A multirotor aircraft that is adapted for vertical take-off and landing. The multirotor aircraft comprises a fuselage, a tail boom that is provided with a vertical fin, a thrust producing units assembly that is provided for producing thrust in operation, at least one lower wing which comprises a lower wing inboard section that is connected to the fuselage and a lower wing outboard section that forms a lower wing tip, and at least one upper wing which is connected to the vertical fin and which forms an upper wing tip. The at least one upper wing is joined to the at least one lower wing in a joined-wing configuration.

This invention relates to a universally attachable hinged wing that pivots and provides lift for multirotor drones while moving in a forward direction of flight, thus reducing power consumption and increasing payload capacity or flight duration time and distance, and provides a visual line of sight (VLOS) aid while hovering.

This invention relates to a universally attachable hinged wing that pivots and provides lift for multirotor drones while moving in a forward direction of flight, thus reducing power consumption and increasing payload capacity or flight duration time and distance, and provides a visual line of sight (VLOS) aid while hovering.

In an embodiment, a method includes: collecting usage and maintenance data for a rotorcraft at a computer of the rotorcraft; sending the usage and maintenance data to a fleet management server; generating individualized equipment data for the rotorcraft according to the usage and maintenance data at the fleet management server, the individualized equipment data including a lightweight digital representation of the rotorcraft and technical publications for the rotorcraft, the lightweight digital representation including mesh-based 3D visualizations of each component of the rotorcraft, the technical publications having views referencing the mesh-based 3D visualizations; sending the individualized equipment data to the computer of the rotorcraft; and persisting the individualized equipment data at the computer of the rotorcraft.

In an embodiment, a method includes: collecting usage and maintenance data for a rotorcraft at a computer of the rotorcraft; sending the usage and maintenance data to a fleet management server; generating individualized equipment data for the rotorcraft according to the usage and maintenance data at the fleet management server, the individualized equipment data including a lightweight digital representation of the rotorcraft and technical publications for the rotorcraft, the lightweight digital representation including mesh-based 3D visualizations of each component of the rotorcraft, the technical publications having views referencing the mesh-based 3D visualizations; sending the individualized equipment data to the computer of the rotorcraft; and persisting the individualized equipment data at the computer of the rotorcraft.

An aircraft includes: a plurality of rotor units each including a propeller and a motor that drives the propeller; a plurality of shock absorbers including a first shock absorber and a second shock absorber different from the first shock absorber, the first shock absorber defining a first gas chamber containing a first gas that is less dense than air; and a release unit that is disposed on the first shock absorber and configured to release the first gas contained in the first gas chamber at a predetermined timing.

An aircraft includes: a plurality of rotor units each including a propeller and a motor that drives the propeller; a plurality of shock absorbers including a first shock absorber and a second shock absorber different from the first shock absorber, the first shock absorber defining a first gas chamber containing a first gas that is less dense than air; and a release unit that is disposed on the first shock absorber and configured to release the first gas contained in the first gas chamber at a predetermined timing.