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

Claim 9:
10. A horizontal stabilizer assembly, comprising:
a stabilizer connector assembly having a center multi-spar box including 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 base rib assembly secured to a first side of the center multi-spar box, the first base rib assembly including a pair of aligned front lateral lugs positioned along a front of the first base rib assembly, a pair of aligned rear lateral lugs positioned along a rear of the first base rib assembly, and at least one pair of opposing middle longitudinal lugs disposed along a top of the first base rib assembly and a bottom of the first base rib assembly and between the front lateral lugs and the rear lateral lugs;
a second base rib assembly secured to a second side of the center multi-spar box, the second base rib assembly including a pair of aligned front lateral lugs positioned along a front of the second base rib assembly, a pair of aligned rear lateral lugs positioned along a rear of the second base rib assembly, at least one pair of opposing middle longitudinal lugs disposed along a top of the second base rib assembly and a bottom of the second base rib assembly and between the front lateral lugs and the rear lateral lugs;
wherein each of the front spar, the rear spar, and the at least one mid spar of the center multi-spar box extend between the first base rib assembly and the second base rib assembly, wherein the at least one mid spar of the center multi-spar box aligns with a respective one of the at least one pair of opposing middle longitudinal lugs of the first base rib assembly and a respective one of the at least one pair of opposing middle longitudinal lugs of the second base rib assembly;
a first horizontal stabilizer having a first multi-spar box;
a third base rib assembly secured to the first multi-spar box, the third base rib assembly including a front lateral lug positioned along a front of the third base rib assembly, a rear lateral lug positioned along a rear of the third base rib assembly, at least one pair of opposing middle longitudinal lugs disposed along a top of the third base rib assembly and a bottom of the third base rib assembly and between the front lateral lug and the rear lateral lug;
a second horizontal stabilizer having a second multi-spar box;
a fourth base rib assembly secured to the second multi-spar box, the fourth base rib assembly including a front lateral lug positioned along a front of the fourth base rib assembly, a rear lateral lug positioned along a rear of the fourth base rib assembly, at least one pair of opposing middle longitudinal lugs disposed along a top of the fourth base rib assembly and a bottom of the fourth base rib assembly and between the front lateral lug and the rear lateral lug; and
a plurality of retaining members inserted through mounting holes in corresponding lugs in the first and third base ribs and through mounting holes in corresponding lugs of the second and fourth base ribs to secure the first horizontal stabilizer and the second horizontal stabilizer to the stabilizer connector assembly.