14 C.F.R. § 35.15 Design features.
Title 14 - Aeronautics and Space
The propeller may not have design features that experience has shown to be hazardous or unreliable. The suitability of each questionable design detail or part must be established by tests.
Title 14: Aeronautics and Space
PART 35—AIRWORTHINESS STANDARDS: PROPELLERS
Subpart B—Design and Construction
§ 35.15 Design features.
