Invention Grant
- Patent Title: Rotorcraft anti-torque system
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Application No.: US15796910Application Date: 2017-10-30
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Publication No.: US10940945B2Publication Date: 2021-03-09
- Inventor: Levi C. Hefner , Frank B. Stamps
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Bell Helicopter Textron Inc.
- Current Assignee: Bell Helicopter Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Agency: Timmer Law Group, PLLC
- Main IPC: B64C27/82
- IPC: B64C27/82 ; B64C27/12

Abstract:
There is provided a rotorcraft, including a body, including a front portion and a tail portion; a main rotor system coupled to the front portion of the body, the main rotor system operable to provide a lifting force on the body; and an anti-torque system coupled to the tail portion of the body, the anti-torque system including a primary tail rotor system and a secondary tail rotor system; wherein the primary tail rotor system and the secondary tail rotor system are operable to provide a first anti-torque force and a second anti-torque force. In other aspects, there are methods of providing anti-torque force in a rotorcraft.
Public/Granted literature
- US20190127059A1 ROTORCRAFT ANTI-TORQUE SYSTEM Public/Granted day:2019-05-02
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