CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—AIRCRAFT (parts 21 to 50) > PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT > SUBPART C—Strength Requirements (§29.301 to §29.571) > 29.303—Factor of safety.

29.303—Factor of safety.

Unless otherwise provided, a factor of safety of 1.5 must be used. This factor applies to external and inertia loads unless its application to the resulting internal stresses is more conservative.