# US 10,766,615 B1 · Hover airlift logistics operations guided expeditionary autonomous scalable and modular VTOL platform > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,615 B1 - Document ID: US10766615B1 - Status: Granted - Kind: B1 - Application number: 15/886,606 - Filed: 2018-02-01 - Granted: 2020-09-08 - Earliest claimed: 2015-03-10 - Applicants: Lindsay O'Brien Quarrie - Inventors: Lindsay O'Brien Quarrie - Web page: https://patentgrep.com/patent/US10766615B1 ## CPC - B64C 29/0025: {the propellers being fixed relative to the fuselage} - B64C 27/24: with rotor blades fixed in flight to act as lifting surfaces - B64C 39/06: having disc- or ring-shaped wings - B64U 20/10: for stealth, e.g. reduction of cross-section detectable by radars - B64U 30/20: Rotors; Rotor supports - B64U 50/30: Supply or distribution of electrical power - B64U 50/14: ducted or shrouded - B64U 2201/20: Remote controls - B64C: AEROPLANES; HELICOPTERS - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR ## Abstract A vertical takeoff and landing aircraft has a circular body with a cockpit at the center, and multiple vertical, horizontal, and other directional through tunnels inside the body. A propelling device such as ducted fan, jet turbine or rocket is provided inside each tunnel. Each propelling device is completely disposed within a tunnel with no exposed parts. The bottom surface of the aircraft has a circular lip forming the lowest part of the aircraft, and the portion of the bottom surface surrounded by the circular lip is concave, where the multiple vertical through tunnels open to the concave portion. A control system controls the thrust produced by each propelling device so as to precisely control the horizontal and vertical speed and the pitch, roll, and yaw angles of the aircraft. Communication and positioning equipment are provided onboard, as well as various sensors. The aircraft may be manned or unmanned. ## Claims ### Claim 1 A vertical take-off and landing aircraft, comprising: a body having a circular shape extending horizontally to a circular outer edge, the body defining a top surface and a bottom surface, the bottom surface including a circular lip which is located at a lowest position of the aircraft, the bottom surface further including a concave portion surrounded by the circular lip; a cockpit disposed in a center region of the body; a first plurality of through tunnels defined inside the body and arranged around the center region of the body, each of the first plurality of tunnels extending substantially vertically through the body between the top surface and the concave portion of the bottom surface; a second plurality of through tunnels defined inside the body, each of the second plurality of tunnels extending substantially parallel to a horizontal front-back direction of the body between a front end and a rear end of the body; a third plurality of through tunnels defined inside the body, each of the third plurality of tunnels extending in a direction which is neither substantially vertical nor substantially parallel to the horizontal front-back direction of the body, each of the third plurality of tunnels having an upper opening located on the top surface of the body and a side opening; a plurality of propelling devices, wherein each propelling device is completely contained within one of the first, second and third plurality of tunnels, and wherein each propelling device is fixedly mounted to the body to generate propulsion in a fixed direction relative to the aircraft; a passthrough tunnel defined inside the body and located below the cockpit, having a horizontally elongated cross-sectional shape and extending horizontally in the front-back direction of the body from an inlet adjacent to a leading edge of the circular outer edge of the body to an outlet adjacent a trailing edge of the circular outer edge of the body without other openings, wherein the passthrough tunnel is free of any propelling devices; and control equipment disposed inside the body and coupled to the plurality of propelling devices, configured to control the plurality of propelling devices. ### Claim 2 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the second plurality of through tunnels includes two tunnels each having a front opening and a rear opening located at the outer edge of the body. ### Claim 3 (depends on 2) The vertical take-off and landing aircraft of claim 2, wherein the second plurality of through tunnels further includes two tunnels located at a height above that of the outer edge. ### Claim 4 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the third plurality of through tunnels includes two side tunnels, located in a front half of the body on opposite sides of a longitudinal vertical center plane of the body, each side tunnel extending from an upper opening of the side tunnel downwardly and sideways away from the longitudinal vertical center plane to a side opening of the side tunnel, wherein the side opening is located at the outer edge of the body. ### Claim 5 (depends on 4) The vertical take-off and landing aircraft of claim 4, wherein the third plurality of through tunnels further includes at least two tail tunnels, located in a rear half of the body on opposite sides of the longitudinal vertical center plane, each tail tunnel extending from an upper opening of the tail tunnel downwardly, rearwardly, and sideways away from the longitudinal vertical center plane to a side opening of the tail tunnel, wherein the side opening is located at the outer edge of the body. ### Claim 6 (depends on 5) The vertical take-off and landing aircraft of claim 5, wherein each of the two tail tunnels extends in a direction approximately 45 degrees with respect to the front-back direction in a top view. ### Claim 7 (depends on 5) The vertical take-off and landing aircraft of claim 5, wherein each of the side tunnels and the tail tunnels has a bent shape that includes one or more bends of obtuse angles. ### Claim 8 (depends on 1) The vertical take-off and landing aircraft of claim 1, further comprising: a first plurality of auxiliary through tunnels extending substantially vertically through the body, wherein the first plurality of auxiliary through tunnels are smaller than the first plurality of through tunnels; a second plurality of auxiliary through tunnels extending substantially parallel to the horizontal front-back direction through the body, wherein the second plurality of auxiliary through tunnels are smaller than the second plurality of through tunnels; and a plurality of auxiliary propelling devices, wherein each auxiliary propelling device is completely contained within one of the first and second plurality of auxiliary tunnels, and wherein each auxiliary propelling device is fixedly mounted to the body to generate propulsion in a fixed direction relative to the aircraft. ### Claim 9 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the plurality of propelling devices includes a plurality of ducted fans, wherein each ducted fan is fixedly mounted to the body inside a tunnel and configured to rotate around a fixed rotational axis. ### Claim 10 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the plurality of propelling devices includes a plurality of jet turbines or rockets. ### Claim 11 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the control equipment is configured to control thrust generated by each of the plurality of propelling devices to control horizontal and vertical speed and pitch, roll, and yaw angles of the aircraft. ### Claim 12 (depends on 1) The vertical take-off and landing aircraft of claim 1, further comprising a plurality of protective meshes, wherein each protective mesh is disposed at an opening of one of the through tunnels. ### Claim 13 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the body has hollow interior spaces. ### Claim 14 (depends on 13) The vertical take-off and landing aircraft of claim 13, wherein the body further includes internal partitions which divide the hollow interior spaces into multiple hollow compartments, wherein at least some of the hollow compartments are sealed to outside atmosphere, and at least some of the hollow compartments are accessible from outside of the body. ### Claim 15 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the bottom surface of the body is coated with a water tight sealing material that makes the bottom surface water tight, and wherein the body is coated with a corrosion resistant and refractory material. ### Claim 16 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein the body is coated with an anti-radar stealth coating. ### Claim 17 (depends on 1) The vertical take-off and landing aircraft of claim 1, further comprising: communication equipment and positioning equipment disposed inside the body; a power source system; and sensors located on an exterior of the body; wherein the communication equipment, the positioning equipment, the power source system, and the sensors are connected to the control equipment. ### Claim 18 (depends on 1) The vertical take-off and landing aircraft of claim 1, wherein at least a part of the body is inflatable and deflatable.