Invention Grant
- Patent Title: Assisted landing systems for rotorcraft
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Application No.: US15982420Application Date: 2018-05-17
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Publication No.: US10906637B2Publication Date: 2021-02-02
- Inventor: Frank Bradley Stamps , Michael K. McNair , John Richard McCullough
- Applicant: Textron Innovations Inc.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations Inc.
- Current Assignee: Textron Innovations Inc.
- Current Assignee Address: US RI Providence
- Agency: Lawrence Youst PLLC
- Main IPC: B64C27/08
- IPC: B64C27/08 ; B64C29/00 ; B64D27/02 ; B64C27/00 ; B64D27/10 ; B64D27/24

Abstract:
A propulsion assembly for a rotorcraft includes a blade assembly, a drive shaft coupled to the blade assembly and an electric motor coupled to the drive shaft and operable to provide rotational energy to the drive shaft to rotate the blade assembly. The propulsion assembly includes a landing assistance turbine coupled to the drive shaft and operable to selectively provide rotational energy to the drive shaft during an underpowered descent to rotate the blade assembly and provide upward thrust, thereby reducing a descent rate of the rotorcraft prior to landing.
Public/Granted literature
- US20190351999A1 Assisted Landing Systems for Rotorcraft Public/Granted day:2019-11-21
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