Limit and ultimate loads.
CFR · 2024-01-01 · US · Title 14
The applicant must determine— (a) The limit loads, which are equal to the structural design loads unless otherwise specified elsewhere in this part; and (b) The ultimate loads, which are equal to the limit loads multiplied by a 1.5 factor of safety unless otherwise specified elsewhere in this part.
official document · source cfr-2024 · id 14:§ 23.2230