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.

Date of Patent:
Jul. 02, 2019

Filed:

Nov. 02, 2017
Applicant:

Embraer S.a., São José dos Campos-SP, BR;

Inventors:

Murilo Pinto Ribeiro, São José dos Campos, BR;

Gustavo José Zambrano, São José dos Campos, BR;

Assignee:

Embraer S.A., São José dos Campos, BR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 23/00 (2006.01); B64D 43/02 (2006.01); B64D 15/22 (2006.01); G05D 1/08 (2006.01); B64C 13/16 (2006.01); B64C 13/50 (2006.01);
U.S. Cl.
CPC ...
B64D 43/02 (2013.01); B64C 13/16 (2013.01); B64C 13/503 (2013.01); B64D 15/22 (2013.01); G05D 1/0816 (2013.01);
Abstract

This non-limiting technology proposes to modify the maximum angle of attack setting (α) of the Stall Protection or Stall Warning Systems continuously or continually, according to the elapsed time since icing is first detected and/or the deicing system was activated. A changing maximum angle of attack setting maintains approximately the same angle-of-attack margin to the stall angle-of-attack by taking into account improvements in the stall angle of attack due to inflight icing removal and icing prevention by operation of an inflight deicing system. The aircraft flying with an angle of attack closer to the critical angle of attack is capable of producing a higher coefficient of lift.


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