Text in force at CS29-12: from CS29-11, effective 8 Feb 2023.
(a) The rotorcraft is assumed to be in the level landing attitude, with:
(1) Side loads combined with one-half of the maximum ground reactions obtained in the level landing conditions of CS 29.479(b)(1); and
(2) The loads obtained under sub-paragraph (a)(1) applied:
(i) At the ground contact point; or
(ii) For full-swivelling gear, at the centre of the axle.
(b) The rotorcraft must be designed to withstand, at ground contact:
(1) When only the aft wheels contact the ground, side loads of 0.8 times the vertical reaction acting inward on one side and 0.6 times the vertical reaction acting outward on the other side, all combined with the vertical loads specified in sub-paragraph (a); and
(2) When the wheels contact the ground simultaneously:
(i) For the aft wheels, the side loads specified in sub-paragraph (b)(1); and
(ii) For the forward wheels, a side load of 0.8 times the vertical reaction combined with the vertical load specified in sub-paragraph (a).
ED Decision 2023/001/R · Source