StacksVerified U.S. regulatory reference

14 CFR §25.491

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Within the range of appropriate ground speeds and approved weights, the airplane structure and landing gear are assumed to be subjected to loads not less than those obtained when the aircraft is operating over the roughest ground that may reasonably be expected in normal operation.