14 C.F.R. § 25.371 Gyroscopic loads.
Title 14 - Aeronautics and Space
The structure supporting any engine or auxiliary power unit must be designed for the loads including the gyroscopic loads arising from the conditions specified in §§25.331, 25.341(a), 25.349, 25.351, 25.473, 25.479, and 25.481, with the engine or auxiliary power unit at the maximum rpm appropriate to the condition. For the purposes of compliance with this section, the pitch maneuver in §25.331(c)(1) must be carried out until the positive limit maneuvering load factor (point A2 in §25.333(b)) is reached. [Amdt. 25–91, 62 FR 40704, July 29, 1997]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart C—Structure
Supplementary Conditions
§ 25.371 Gyroscopic loads.
