A vertical landing and take-off aircraft VTOL transitions from a vertical takeoff state to a cruise
state where the vertical takeoff state uses propellers to generate lift and the cruise state uses …

An aircraft employs articulated, variable-position electric rotors having different operating
configurations and transi tions therebetween, as well as variable-pitch airfoils or blades, for …

An aircraft can include a stacked propeller to generate lift during assent and descent. The
stacked propeller includes a first propeller and a second propeller that co-rotate about an …

The disclosure generally relates to aircraft vehicles, specifi cally vertical takeoff and landing
(VTOL) aircraft that include propellers. A propeller is coupled to a boom and the boom …

(57) ABSTRACT A hybrid multi-rotor aircraft, includes a plurality of vertical propulsion rotors
and at least one forward propulsion rotor. The aircraft also includes a rotor compartment …

A system for propulsion management of an electric aircraft. The system includes an electric
aircraft that is configured to transition between a hover state and a fixed-wing flight state. The …

Arms and an associated unmanned aerial vehicle (UAV) are disclosed, which include a
connecting component, a frame and arms. Each arm includes a longitudinal tube having an …

The aircraft includes a fuselage, a front wing and a rear wing provided to extend laterally
from the fuselage for generating lift during cruise, a boom 18 supported by the front wing and …

(57) ABSTRACT A vertical landing and take-off aircraft VTOL transitions from a vertical
takeoff state to a cruise state where the vertical takeoff state uses propellers to generate lift …

B64C29/0016—Aircraft capable of landing or taking-off vertically, eg vertical take-off and
landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift …