公开(公告)号：US11046417B2

公开(公告)日：2021-06-29

申请号：US15933106

申请日：2018-03-22

Applicant: Bell Helicopter Textron Inc.

Inventor： Sebastien Duval ,  Guillaume Noiseux-Boucher ,  Aaron Alexander Acee

IPC: B64C5/06 ,  B64C27/82 ,  B64C5/12

Abstract: Systems and methods include providing an aircraft with a vertical stabilizer system having a vertical stabilizer operatively coupled to a tail boom, tail rotor gearbox, or other component of the aircraft at a forward attachment and an aft attachment. The vertical stabilizer is selectively rotatable to adjust an angle of attack of the vertical stabilizer with respect to a forward flight direction of the aircraft. The vertical stabilizer is rotatable between a forward flight position having a substantially small degree angle of attack and a hover or lateral movement position having a substantially ninety degree angle of attack.

公开(公告)号：US20190168878A1

公开(公告)日：2019-06-06

申请号：US15832689

申请日：2017-12-05

Applicant: Bell Helicopter Textron Inc.

Inventor： Eric A. Sinusas ,  Olivier Andre Boisvert ,  Guillaume Noiseux-Boucher ,  Steve Loveland ,  Sebastien Duval

IPC: B64D11/06

Abstract: A modal restraint system for an occupant of a seat of an aircraft includes a strap feeder unit and a strap selectively retractable into and extendable from the strap feeder unit. The strap is positionable adjacent to the occupant so as to dispose the occupant between the strap and the seat. The strap feeder unit is adapted to switch between a plurality of modes including a fixed mode and an unfixed mode. The strap is substantially unextendable from the strap feeder unit in the fixed mode. The strap is extendable from and retractable into the strap feeder unit in the unfixed mode. The strap feeder unit is in the fixed mode by default. The strap feeder unit is operable to switch to the unfixed mode in response to a user input, thereby increasing freedom of movement of the occupant relative to the seat of the aircraft.