US 11,655,019 B2
Method and system for coupling a vertical stabilizer to an aircraft fuselage
Rosario Vingiani, Seattle, WA (US); Phiyen Thi Pham, Lynnwood, WA (US); Steven Edward Pearson, Lynnwood, WA (US); Peter J. Newnham, Everett, WA (US); and Nicholas W. Heintz, Stanwood, WA (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Apr. 30, 2021, as Appl. No. 17/302,362.
Application 17/302,362 is a continuation in part of application No. 16/884,911, filed on May 27, 2020, granted, now 11,370,523.
Prior Publication US 2022/0017205 A1, Jan. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B64F 5/10 (2017.01); B64C 1/26 (2006.01); B64C 5/06 (2006.01)
CPC B64C 1/26 (2013.01) [B64C 5/06 (2013.01); B64F 5/10 (2017.01)] 21 Claims
OG exemplary drawing
 
1. A method for attaching a vertical stabilizer having a multi-spar box to an aircraft fuselage using a clevis system, the method comprising:
installing a composite skin having apertures for receiving a plurality of clevises in a clevis system;
inserting each of the plurality of clevises through the apertures in the composite skin;
securing each of the plurality of clevises to a frame member in the aircraft fuselage;
engaging a base rib assembly of the vertical stabilizer with the clevis system; and
securing a plurality of lugs in the base rib assembly to the plurality of clevises in the clevis system,
wherein the multi-spar box comprises:
a front spar;
a rear spar;
at least one mid spar positioned between and spaced apart from the front spar and the rear spar;
a first side skin extending between the front spar and the rear spar; and
a second side skin, opposite the first side skin, extending between the front spar and the rear spar, wherein the front spar and rear spar and the first side skin and the second side skin define an interior of the multi-spar box, and
wherein the base rib assembly comprises:
a pair of opposing middle longitudinal lugs disposed between a front of the base rib assembly and a rear of the base rib assembly;
a pair of front lateral lugs positioned along the front of the base rib assembly; and
a pair of rear lateral lugs positioned along the rear of the base rib assembly.