US 12,358,616 B2
Compound vertical takeoff and landing aircraft
Johnny Tseng-Pei Doo, Faihope, AL (US); William Doo, Fairhope, AL (US); and Tseng-Hua Tsiang, Solana Beach, CA (US)
Filed by Leviation Technology, Inc., San Diego, CA (US)
Filed on Oct. 28, 2023, as Appl. No. 18/496,850.
Claims priority of provisional application 63/421,570, filed on Nov. 2, 2022.
Prior Publication US 2024/0140598 A1, May 2, 2024
Int. Cl. B64C 27/10 (2023.01); B64C 27/28 (2006.01); B64C 27/52 (2006.01)
CPC B64C 27/10 (2013.01) [B64C 27/28 (2013.01); B64C 27/52 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A compound vertical takeoff and landing aircraft comprising:
a fuselage with modular payload configuration for passenger, cargo, or medical transport functions, the fuselage having an outer skeleton primary structure and a plug-in cabin module; and
a propulsion system consisting of:
contra-rotating main rotors mounted on an upper side of the fuselage, the contra-rotating main rotors having that provide a direct electric drive provided by at least one motor; and
a plurality of tiltable thrusters mounted respectively at a forward section and at an aft section of the fuselage, each tiltable thruster being powered by one or more motors,
wherein:
the contra-rotating main rotors provide primary lift and control lift by varying power input and rotations per minute of the at least one motor,
the contra-rotating main rotors control the lift by varying power input and rotations per minute, a majority of left and right lift differentials generated by an advancing and a retrieving blade in forward flight being compensated automatically by the contra-rotating main rotors and being controllable by adjusting contra-rotation speeds,
the plurality of tiltable thrusters is configured to tilt to change thrust direction from vertical to horizontal and to in-between positions, so as to provide:
in vertical flight mode, auxiliary lift and flight control by varying thrust to control pitch, roll, and vertical movement, and
in forward flight mode, forward thrust and partial auxiliary lift with varying tilt angle, pitch control, and yaw control by varying a thrust of each tiltable thruster.