Patent ID: 11932398
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A method of assembling a horizontal stabilizer assembly for an aircraft, comprising the steps of:
assembling first and second base rib assemblies, each of the first and second base rib assemblies including lug and clevis connections having a plurality of lugs;
positioning the first base rib assembly adjacent a first side of a center multi-spar box of a stabilizer connector assembly and the second base rib assembly adjacent a second side of the center multi-spar box, opposite the first side, wherein the center multi-spar box includes a front spar, a rear spar, at least one mid spar positioned between and spaced apart from the front spar and the rear spar, and wherein each of the front spar, the rear spar, and the at least one mid spar of the center multi-spar box extend between a respective pair of the lug and clevis connections, wherein the at least one mid spar of the center multi-spar box aligns with the respective pair of the lug and clevis connections;
positioning a plurality of side plates corresponding to the plurality of lugs of the first and second base rib assemblies adjacent the center multi-spar box and securing the plurality of side plates to the center multi-spar box and the first base rib assembly, the plurality of side plates having at least one longitudinal lug aligned with and spaced apart from one of the plurality of lugs of the first and second base rib assemblies;
assembling third and fourth base rib assemblies, each of the third and fourth base rib assemblies including a plurality of lugs;
positioning the third base rib assembly adjacent a first multi-spar box of a first horizontal stabilizer and securing the third base rib assembly to the first multi-spar box and positioning the fourth base rib assembly adjacent a second multi-spar box of a second horizontal stabilizer and securing the fourth base rib assembly to the second multi-spar box;
positioning the first horizontal stabilizer adjacent the first side of the center multi-spar box and the second horizontal stabilizer adjacent the second side of the center multi-spar box; and
inserting retaining members through mounting holes in corresponding lugs in the first and third base rib assemblies and through mounting holes in corresponding lugs of the second and fourth base rib assemblies to secure the first horizontal stabilizer and the second horizontal stabilizer to the stabilizer connector assembly.