US 11,738,853 B2
Honeycomb core for a spar of an unmanned aerial vehicle
Greg T. Kendall, Simi Valley, CA (US)
Assigned to HAPSMobile Inc., Tokyo (JP)
Filed by HAPSMobile Inc., Tokyo (JP)
Filed on Jun. 29, 2022, as Appl. No. 17/852,368.
Application 17/852,368 is a continuation of application No. PCT/JP2020/049269, filed on Dec. 28, 2020.
Claims priority of provisional application 62/975,684, filed on Feb. 12, 2020.
Claims priority of provisional application 62/954,981, filed on Dec. 30, 2019.
Prior Publication US 2023/0101667 A1, Mar. 30, 2023
Int. Cl. B64C 3/18 (2006.01); B64C 39/02 (2023.01); B64C 3/22 (2006.01)
CPC B64C 3/185 (2013.01) [B64C 3/22 (2013.01); B64C 39/024 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system comprising:
a wing panel;
a spar disposed in the wing panel, wherein the spar comprises:
an upper cap;
a lower cap;
a honeycomb core connected between at least a portion of the upper cap and the lower cap;
an lower surface sheet; and
an upper surface sheet, wherein
at least a portion of the honeycomb core is disposed between the lower surface sheet and the upper surface sheet, and
the spar is thicker at the upper cap than at the lower cap.