Sec. 25.491 - Taxi, takeoff and landing roll.
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.
[Amdt. 25-91, 62 FR 40705, July 29, 1997]