Invention Application
- Patent Title: Preventing Helicopter Loss of Tail Rotor Effectiveness
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Application No.: US17151718Application Date: 2021-01-19
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Publication No.: US20220227488A1Publication Date: 2022-07-21
- Inventor: Albert G. Brand , Bradley P. Regnier , Matthew J. Hill
- Applicant: TEXTRON INNOVATIONS INC.
- Applicant Address: US RI PROVIDENCE
- Assignee: TEXTRON INNOVATIONS INC.
- Current Assignee: TEXTRON INNOVATIONS INC.
- Current Assignee Address: US RI PROVIDENCE
- Main IPC: B64C27/78
- IPC: B64C27/78 ; B64D45/00 ; B64C27/82 ; B64C27/57 ; B64C27/68

Abstract:
Embodiments are directed to a flight control system for a helicopter comprises a pilot interface configured to receive a control input, at least one electronically controlled actuator, and a computing device configured to translate the control input to an actuator command, wherein the computing device is further configured to apply yaw rate limits to the actuator command to avoid loss of tail rotor effectiveness. The yaw rate limits are associated with a vortex ring state (VRS) envelope for a tail rotor of the helicopter. The electronically controlled actuator comprises a tail rotor actuator. The control input is a pedal input.
Public/Granted literature
- US11801936B2 Preventing helicopter loss of tail rotor effectiveness Public/Granted day:2023-10-31
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