US 11,673,653 B2
Wingtip device
Nicholas R. Guida, Sagle, ID (US)
Assigned to Tamarack Aerospace Group, Inc., Sandpoint, ID (US)
Filed by Tamarack Aerospace Group, Inc., Sandpoint, ID (US)
Filed on Jan. 25, 2021, as Appl. No. 17/157,828.
Application 17/157,828 is a continuation of application No. 16/411,041, filed on May 13, 2019, granted, now 10,899,434.
Application 16/411,041 is a continuation of application No. 14/562,363, filed on Dec. 5, 2014, granted, now 10,287,002, issued on May 14, 2019.
Claims priority of provisional application 61/912,014, filed on Dec. 5, 2013.
Prior Publication US 2022/0048613 A1, Feb. 17, 2022
Int. Cl. B64C 23/06 (2006.01)
CPC B64C 23/069 (2017.05) [Y02T 50/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
operating an aircraft with a wingtip device at a flight condition, the wingtip device having a leading edge defined by a first smooth continuous higher order function and a trailing edge defined by a second smooth continuous higher order function, the first smooth continuous higher order function different from the second smooth continuous higher order function;
distributing lift across a wing to an efficient lift distribution at the flight condition; and
increasing efficiency of the aircraft at the flight condition.