Subaru Corporation

Hokuto Yamane

Hirotaka Hayashi

Hiroshi Nagai

Wataru Kobayashi

Hiroshi Taguchi

Hiroshi Fujisawa

Ryosuke Sato

Katsunori Naganuma

Toshiyuki Ichiki

Taku Sagara

Kazuhisa Takaki

An aircraft includes: a main body; arms extending substantially horizontally from the main body; rotors that are located at distal ends of the arms and generate lift by rotating; first motors that are coupled to the rotors and rotate the rotors; motor mounts supporting the first motors; and second motors that rotate the motor mounts relative to the arms. The motor mounts each includes a mount proximal end, a mount distal end, and a bent part. The first motors are each fixed to the mount distal end. The mount proximal end is disposed so as to extend substantially vertically upward from the arm. The motor mounts are each coupled to the distal end. The second motors each rotates the mount proximal end with respect to the arm to switch an orientation of a plane of rotation of the rotor between a radially inclined orientation and a circumferentially inclined orientation.

Aircraft

A rotary-wing aircraft includes a fuselage, and an external device. The fuselage is provided with a rotary wing. The external device is mounted on the outside of the fuselage. The external device includes a mounting device, a mass variation device, and a damper. The mounting device is fixed to the fuselage and disposed so as to project in a lateral direction of the fuselage. The mass variation device is mounted on the mounting device and has mass that varies as the mass variation device is used. The damper couples the fuselage to the mounting device and supports the mounting device. The damper includes a stiffness variable mechanism configured to change stiffness of the damper in response to variation in the mass of the mass variation device.

Rotary-wing aircraft

A rotor blade for an aircraft includes first and second blade tips, a blade body, and a vortex-generating blade. The blade body has an end forming the first blade tip of the rotor blade and an airfoil section configured such that during rotation, pressure acting on a lower surface of the blade body is greater than pressure acting on an upper surface of the blade body. The vortex-generating blade is disposed at an end of the rotor blade and forms the second blade tip. The vortex-generating blade also has an airfoil section configured such that during rotation, pressure acting on a lower surface of the vortex-generating blade is smaller than pressure acting on an upper surface of the vortex-generating blade.

Rotor blade for aircraft

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Tokyo, Japan

Hokuto Yamane