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:
Feb. 18, 2020
Filed:
Mar. 22, 2018
Applicants:
Robert N. Dunn, Austin, TX (US);
Lawrence R. Dunn, Austin, TX (US);
Inventors:
Robert N. Dunn, Austin, TX (US);
Lawrence R. Dunn, Austin, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 39/08 (2006.01); B64C 3/38 (2006.01); B64C 3/54 (2006.01); B64C 39/10 (2006.01); B64C 3/28 (2006.01);
U.S. Cl.
CPC ...
B64C 39/08 (2013.01); B64C 3/385 (2013.01); B64C 3/54 (2013.01); B64C 3/28 (2013.01); B64C 2039/105 (2013.01);
Abstract
A tandem wing aircraft having a fore wing, an aft wing, and a middle wing, attached relative to the aircraft and each other such that the middle wing provides a substantial portion of the total lift at landing speeds, and a minimal portion of the total lift at cruise speeds. At cruise speeds, induced drag is minimized, permitting higher speeds, greater fuel efficiency, and/or greater payload. Advantageously, the wing loading at cruise speeds is higher providing better passenger comfort while still providing controllability and safety at landing speeds.