Ultimate Load
Ultimate Load
Definition
The Ultimate Load is the Limit Load multiplied by a prescribed Safety Factor of 1.5. Any part of the structure of an aircraft must be able to support the Ultimate Load and, with certain exceptions, be able to do so without failure for at least 3 seconds (Strength and deformation - CS 25.305 and Section 25.305).
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SKYbrary Aviation Safety. (June 25, 2022). Ultimate Load.
Retrieved February 2, 2026
from https://skybrary.aero/articles/ultimate-load
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