Text in force at CS27-10: from CS27-10, effective 8 Feb 2023.
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 rpm ranges power on and power off.
(c) The maximum forward speeds for each main rotor rpm within the ranges determined in sub-paragraph (b).
(d) The maximum rearward and sideward flight speeds.
(e) The centre of gravity limits corresponding to the limitations determined under sub-paragraphs (b), (c), and (d).
(f) The rotational speed ratios between each powerplant and each connected rotating component.
(g) The positive and negative limit manoeuvring load factors.
(h) The maximum and minimum density altitude and temperatures.
ED Decision 2023/001/R · Source