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CS 27.485 Lateral drift landing conditions
Available versions for ERULES-1963177438-4911
ED Decision 2003/15/RM
found in: CS-27 Amdt 9 - Small Rotorcraft (Dec 2021)
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CS-27 Amdt 10 - Sm... (Feb 2023)
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CS 27.485 Lateral drift landing conditions ED Decision 2003/15/RM (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 27.479(b)(1)](#_DxCrossRefBm472493296); 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 all 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).
CS 27.485 Lateral drift landing conditions ED Decision 2003/15/RM (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 27.479(b)(1)](#_DxCrossRefBm8893865); 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 all 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).