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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Low speed autogyro yaw control apparatus and method

Invented by: Walter Gerd Oskar Sonneborn
Colleyville, TX Applicant: Name City State Country Type Sonneborn

Originally Assigned to: Groen Brothers Aviation, Inc.
Salt Lake City, UT
[Now assigned to . . .]

Issued:2014-06-17
Filed:2012-07-10
Application No:13545904
Examined by:Sanderson; Joseph W

Apparatus and methods for controlling yaw of a rotorcraft in the event of one or both of low airspeed and engine failure are disclosed. A yaw propulsion device, such as an air jet or a fan may be used. A pneumatic fan may be driven by compressed air released into a channel surrounding an outer portion of the fan. Power for the yaw propulsion device and other system may be provided by a hydraulic pump and/or generator engaging the rotor. Low speed yaw control may be provided by auxiliary rudders positioned within the stream tube of a prop. The auxiliary rudders may one or both of fold down and disengage from rudder controls when not in use. Apparatus for generating horizontal lift imbalance induced a tail boom positioned within the downwash of a rotor may also be used, including compressed air vents or lateral or trailing edge flaps.

[pdf] U.S. Pat. No. 8,752,786

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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