The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Apr. 17, 2024
Textron Innovations Inc., Providence, RI (US);
Albert G. Brand, North Richland Hills, TX (US);
Andrew Thomas Carter, Richland Hills, TX (US);
Matthew J. Hill, Keller, TX (US);
Brian Erik Barnes, Bedford, TX (US);
Paul Sherrill, Grapevine, TX (US);
Bryan Huber, Keller, TX (US);
Madeline Kvaka, Grand Prairie, TX (US);
Textron Innovations Inc., Providence, RI (US);
Abstract
A method of designing a rotor blade for a rotary aircraft includes establishing a target thrust-weighted solidity of the rotor blade, calculating a reverse flow circle of the rotor blade at a target forward speed of the rotary aircraft, inboard of the reverse flow circle, decreasing chord of the rotor blade relative to a baseline rotor blade possessing the target thrust-weighted solidity, and outboard of the reverse flow circle, increasing the chord of the rotor blade relative to the baseline rotor blade. The rotor blade possesses the target thrust-weighted solidity of the baseline rotor blade and improved stall margin or speed margin at the target forward speed relative to the baseline rotor blade.