14 CFR §29.309
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The following values and limitations must be established to show compliance with the structural requirements of this subpart:
- (a)The design maximum and design minimum weights.
- (b)The main rotor r.p.m. ranges, power on and power off.
- (c)The maximum forward speeds for each main rotor r.p.m. within the ranges determined under paragraph (b) of this section.
- (d)The maximum rearward and sideward flight speeds.
- (e)The center of gravity limits corresponding to the limitations determined under paragraphs (b), (c), and (d) of this section.
- (f)The rotational speed ratios between each powerplant and each connected rotating component.
- (g)The positive and negative limit maneuvering load factors.