Multi-copter lift body aircraft with tail pusher
AssigneePinnacle Vista, LLC
InventorHaofeng Tu
Life of this patent
Estimating the term…
Abstract
A multi-copter lift body aircraft has a push or pull propeller and a lift body that has a first airfoil shape on a front to rear cross-section and a second airfoil shape on a left to right cross-section. The lift body is made from a top shell and a bottom shell. The lift body has a nose and a tail. Multi-copter propellers are attached to the lift body. The multi-copter propellers provide a lift at low speeds and the lift body provides a lift at high speeds. Avionics can be stored in a hollow cavity of the lift body. The avionics may include a control circuit, batteries, and a radio receiver. The multi-copter has a lift body made from an upper shell and a lower shell. The lift body has an optimum attack angle at a cruising speed, and the lift body provides a combined lift mode.
Claims19
A multi-copter lift body aircraft comprising:
- a. a push or pull propeller;
- b. a lift body comprised of a main body and at least a pair of wings coupled to the main body, the main body has a first airfoil shape on a front to rear cross-section along a medial line of the lift body, and each of the at least a pair of wings has a third airfoil shape substantially similar to said first airfoil shape, wherein the lift body has a nose and a tail;
- c. multi-copter propellers having blades coupled to the lift body, wherein the multi-copter propellers are without shrouds and provide a multi-copter propeller lift at low speeds, wherein the lift body provides a lift body lift at high speeds;
- and
- d. avionics stored in a hollow cavity of the lift body, wherein the avionics includes a control circuit, batteries, and a radio receiver, wherein during a forward flight when the lift body generates a majority of the lift, the lifting propellers spin at varied speeds for controlling attitude, wherein the lift body does not have control surfaces, wherein lift body lift increases as an airspeed increases and a multi-copter propeller lift decreases so that the aircraft maintains the same altitude at any speed up to a top speed;
- and
- wherein each of the pair of wings has a top surface, said main body has a top portion, and the top surfaces of each of said pair of wings extend over a portion of said top portion of the main body forming a continuous contour;
- wherein the aircraft is unmanned.
A multi-copter lift body aircraft comprising:
- a. a push or pull propeller;
- b. a lift body comprised of a main body and at least a pair of wings coupled to the main body, the main body has a first airfoil shape on a front to rear cross-section along a medial line of the lift body, and each of the at least a pair of wings has a third airfoil shape substantially similar to said first airfoil shape, wherein the lift body has a nose and a tail;
- c. multi-copter propellers having blades coupled to the lift body, wherein the multi-copter propellers are without shrouds and provide a multi-copter propellers lift at low speeds, wherein the lift body provides a lift body lift at high speeds;
- and
- e. avionics stored in a hollow cavity of the lift body, wherein the avionics includes a control circuit, batteries, and a radio receiver, wherein during a forward flight when the lift body generates a majority of the lift, the lifting propellers spin at varied speeds for controlling attitude, wherein the lift body has control surfaces which are active, wherein the lift body lift increases as an airspeed increases and a multi-copter propeller lift decreases so that the aircraft maintains the same altitude at any speed up to a top speed;
- and
- wherein each of the pair of wings has a top surface, said main body has a top portion, and the top surfaces of each of said pair of wings extend over a portion of said top portion of the main body forming a continuous contour;
- wherein the aircraft is unmanned.
Dependencies are inferred from the claim text.