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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Compound aircraft with autorotation

Invented by: Frederick W. Piasecki
Haverford, PA Applicant: Name City State Country Type Piasecki

Originally Assigned to: Frederick W. Piasecki
Haverford, PA Applicant: Name City State Country Type Piasecki
[Now assigned to . . .]

Issued:2013-03-26
Filed:2010-04-09
Application No:12757287
Examined by:Collins; Timothy D

A compound aircraft features variable incidence wings, a thruster, a rotor and a clutch connecting the engines to the rotor. Upon reaching a suitable forward speed, the control system of the compound aircraft unloads the rotor and disengages the clutch, disconnecting the rotor from the engines. The control system configures the cyclic and collective pitch effectors to cause the rotor to autorotate. The control system selects an autorotation rotational speed that is adequately rapid to prevent excessive deformation of the rotor blades due to aerodynamic forces acting on the blade and that is adequately slow to prevent excessive compressibility effects.

[pdf] U.S. Pat. No. 8,403,255

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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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