Invention Grant
- Patent Title: Rotorcraft with canted coaxial rotors
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Application No.: US16035245Application Date: 2018-07-13
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Publication No.: US11027836B2Publication Date: 2021-06-08
- Inventor: Roger W. Lacy , Michael J. Duffy , David H. Mason
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Parsons Behle & Latimer
- Main IPC: B64C27/52
- IPC: B64C27/52 ; B64C27/10 ; G05D1/08 ; B64C39/02 ; B64C27/82

Abstract:
A rotorcraft has a frame and a plurality of rotors connected to the frame. The frame has a roll axis and a pitch axis. Each of the rotors includes a rotor shaft. The rotor shaft of each of the rotors is canted with respect to at least one of the roll axis and the pitch axis. The rotor shaft of each of the rotors may be canted between 3 and 15 degrees. Each of the rotors may be a co-axial co-rotating rotor. The rotors may be oriented in opposing pairs across the frame. Both rotors in each opposing pair rotate in the same direction. The rotorcraft may include at least two additional rotors, each having a forward cant. Each of the additional rotors may be a co-axial contra-rotating rotor.
Public/Granted literature
- US20200017204A1 CANTED CO-AXIAL ROTORS FOR A ROTORCRAFT Public/Granted day:2020-01-16
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