Invention Grant
- Patent Title: System and method for tail rotor margin awareness
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Application No.: US15708767Application Date: 2017-09-19
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Publication No.: US10315779B2Publication Date: 2019-06-11
- Inventor: Christopher M. Bothwell , Robert Earl Worsham, II , Sung Kyun Kim , Brandon Jeffrey Thomas
- 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: Slater Matsil, LLP
- Main IPC: B64D45/00
- IPC: B64D45/00 ; B64C27/82 ; B64D43/00 ; B64C13/04 ; B64C13/50

Abstract:
In an embodiment, a rotorcraft includes: tail rotor blades; a tail rotor actuator coupled to the tail rotor blades such that the pitch of the tail rotor blades varies according to a current extension of the tail rotor actuator; pilot flight controls electrically coupled to the tail rotor actuator; and a flight control computer electrically coupled to the tail rotor actuator and the pilot flight controls, the flight control computer configured to: determine the current extension of the tail rotor actuator; determine whether the current extension of the tail rotor actuator is within a margin of a maximum extension of the tail rotor actuator; and indicate a first warning to a pilot in response to the current extension of the tail rotor actuator being within the margin of the maximum extension of the tail rotor actuator.
Public/Granted literature
- US20190084690A1 System and Method for Tail Rotor Margin Awareness Public/Granted day:2019-03-21
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