14 CFR § 25.459
Special devices
July 13, 2020
The loading for special devices using aerodynamic surfaces (such as slots, slats and spoilers) must be determined from test data.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-72, 55 FR 29776, July 20, 1990]